taxonID	type	description	language	source
0385623025569245FDF6E9F4FDE1FE02.taxon	description	Figs 1 A, 4 A, 7 A, 11 A, 14 A	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025569245FDF6E9F4FDE1FE02.taxon	type_taxon	Type species Aspidelmis scutellaris Delève, 1954.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025569245FDF6E9F4FDE1FE02.taxon	diagnosis	Differential diagnosis Aspidelmis is characterized by the combination of the following characters: 1) body (Figs 1 A, 7 A) robust, elongate; 2) antennae with segments 3 – 10 filiform; segment 11 longer; 3) surface of the pronotum (Figs 1 A, 4 A, 7 A) smooth, micropunctured; lateral margin sometimes serrate; anterolateral angles distinctly produced; sides moderately arcuate; sublateral carinae in basal 2 / 5; prescutellar carinae shorter; median longitudinal groove thin and shallow; 4) surface of the elytra (Figs 1 A, 7 A) moderately smooth with lateral margin crenulate; sides subparallel in basal 2 / 3 then tapering towards rounded apex; sublateral carinae on 5 th and 7 th intervals; intervals nearly flat to partly raised; 5) prosternum long in front of procoxae; anterior margin laterally lowered and indented; prosternal process moderately wide with arrow-head apex (Fig. 11 A); 6) legs with femora stout, tarsal claws (Fig. 14 A) simple.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025569245FDF6E9F4FDE1FE02.taxon	discussion	Similar genera Aspidelmis can be confused with some species of Pseudelmidolia due to shared features such as a pronotum with sublateral and prescutellar carinae, elytra with sublateral carinae on the 5 th and 7 th intervals, and simple tarsal claws. However, Aspidelmis differs by its narrower pronotum relative to the width of the elytra and its crenulate rather than granulate elytral carinae.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025569245FDF6E9F4FDE1FE02.taxon	description	Larva Described and illustrated by Bertrand (1962).	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025569245FDF6E9F4FDE1FE02.taxon	distribution	Distribution Endemic to Madagascar.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025579245FD93EE90FBD0FAA6.taxon	materials_examined	Material examined MADAGASCAR • 1 ex.; “ Madagasc. IX. 49 J. M // Gué de Tanandou Andringitra // J. Delève det., 1953 Aspid. perrieri Fairm // I. R. Sc. N. B. I. G. 25.041 Coll. & det. J. Delève ”; IRSNB.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025579245FDEFE809FE6DFC8F.taxon	description	Figs 1 A, 4 A, 7 A, 11 A, 14 A	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025579245FDEFE809FE6DFC8F.taxon	materials_examined	Material examined MADAGASCAR • 1 ♂; “ ♂ // Para- type // Itremo, riv. VIII- 49 J. Millot // Prép. Asp. Let 2 19533 // J. Delève det., 1953 Aspid. scutellaris n. sp. // I. R. Sc. N. B. I. G. 25.041 Coll. & det. J. Delève ”; IRSNB • 1 ♂; “ MADAGASCAR: Vatovavy-Fltovlnany, Ranomafana N. P., (alt. 1010 m), 21.266 ° S, 47.426 ° E, 31 I- 3 II 2018, S. KAKIZOE, (LT) // S. KAKIZOE Collection SKC 002892 // Aspidelmis scutellaris Delève, 1954 ♂ K. Matsumoto det. 2019 // BMNH {E} 2019 – 58 S. Kakizoe ”; illustrated in Figs 1 A, 4 A, 7 A, 11 A, 14 A; BMNH.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025579245FDBAE9A4FAB5FBB2.taxon	materials_examined	Material examined MADAGASCAR • 1 ex.; “ Itrema riv. // Madagasc. VIII- 49 J. M. // Prépar. genit N ° 169631 // J. Delève det., 1953 Aspid. subfuliginosa Gr. // I. R. Sc. N. B. I. G. 25.041 Coll. & det. J. Delève ”; IRSNB.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025579246FDBDEF65FB70FC27.taxon	description	Figs 1 B, 4 B, 7 B, 11 B, 14 B	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025579246FDBDEF65FB70FC27.taxon	type_taxon	Type species Ctenelmis harrisoni Delève, 1964.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025579246FDBDEF65FB70FC27.taxon	diagnosis	Differential diagnosis Ctenelmis is characterized by the combination of the following characters: 1) body (Figs 1 B, 7 B) robust, elongate; 2) antennae with segments 3 – 10 filiform; segment 11 longer; 3) surface of the pronotum (Figs 1 B, 4 B, 7 B) granulose; anterolateral angles moderately to distinctly produced; sides arcuate; sublateral carinae almost complete, in the middle zagged inwards; median groove almost complete, usually narrowed in basal half, with raised or carinate outline; 4) surface of the elytra (Figs 1 B, 7 B) granulose; sides subparallel in basal 2 / 3, then tapered into rounded apex; odd intervals almost entirely carinate, even intervals carinate only at base; 5) prosternum moderately short in front of procoxae without chin piece; anterior margin without distinct indentation; prosternal process moderately narrow with rounded apex (Fig. 11 B); 6) legs with femora stout, tarsal claws pectinate (Fig. 14 B) or with at least two subbasal teeth.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025579246FDBDEF65FB70FC27.taxon	discussion	Remarks The main generic traits that vary are the development of the anterolateral angles and the structure of the tarsal claws. The subgenus of Paractenelmis also shows less developed anterolateral angles and nonpectinate tarsal claws. Similar genera Ctenelmis can be confused with Elpidelmis due to their robust, rather wide bodies and similar patterns of elytral carinae. However, Ctenelmis differs by its long, almost complete sublateral carinae on the pronotum, shorter prosternum, tarsal claws with additional teeth, and generally narrower body. Larva Unknown.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025579246FDBDEF65FB70FC27.taxon	distribution	Distribution Endemic to South Africa. The record from Angola is omitted (see Discussion).	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025549246FDF3E9FCFACBFB54.taxon	materials_examined	Material examined SOUTH AFRICA • 1 ♂; “ Holo- type // ♂ // Stn. No. 274 // Tampa, ca. 4000 ft., 15. vi. 1954. drying pools in sandy river bed, foul water. // S. AFRICA: Angola. Hulia District. J. Balfour-Browne. B. M. 1954 - 797. // Prépar. Genit. N ° 23165.7 // J. Delève det., 1965 Ctenelmis crinipes n. sp. // NHMUK 013792806 ”; BMNH.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025549247FDF1EEEDFDC6FD2C.taxon	materials_examined	Material examined SOUTH AFRICA • 1 ♂; “ Holo- type // ♂ // Stn. No. 32 // Stream with falls and in grassy pools 1000 ft. // S. AFRICA: Cape Province. Caledon District. J. Balfour-Browne. B. M. 1954 - 797. // Prépar. Genit. N ° 25165.1 // J. Delève det., 1965 Ctenelmis elegans n. sp ”; BMNH • 1 ♂; “ Para- type // ♂ // Stn. No. 274 // S. AFRICA: Angola. Hulla District. J. Balfour-Browne. B. M. 1954 - 797. // Tampa, ca. 4000 ft., 15. vi. 1954 drying pools in sandy river bed, foul water. // Prépar. Genit. N ° 15165.3 // J. Delève det., 1965 Ct. elegans n. sp ”; BMNH • 1 ♂; “ Para- type // ♂ // Stn. No. 274 // Tampa, ca. 4000 ft., 15. vi. 1954 drying pools in sandy river bed, foul water. // S. AFRICA: Angola. Hulla District. J. Balfour-Browne. B. M. 1954 - 797. // Prépar. Genit. N ° 25165.6 // J. Delève det., 1965 Ct. elegans n. sp ”; BMNH • 1 ♂; “ Para- type // ♂ // Stn. No. 32 // Stream with falls and in grassy pools 1000 ft. // S. AFRICA: Cape Province. Caledon District. J. Balfour-Browne. B. M. 1954 - 797. // Prépar. Genit. N ° 25165.2 // J. Delève det., 1965 Ct. elegans n. sp ”; BMNH • 1 ♂; “ ♂ // Stn. No. 43. // Tradouw Pass. 13. iii. 1954. // On waterfall and in stony stream below, 1500 ft // S. AFRICA: Cape Province. Swellendam District. J. Balfour-Browne. B. M. 1954 - 797. // Prépar. Genit. N ° 20165.6 // J. Delève det., 1965 Ct. elegans n. sp // NHMUK 013792851 ”; BMNH • 1 ♂; “ ♂ // Stn. No. 32 // Stream with falls and in grassy pools 1000 ft. // S. AFRICA: Cape Province. Caledon District. J. Balfour-Browne. B. M. 1954 - 797 // Prépar. Genit. N ° 25165.3 // J. Delève det., 1965 Ct. elegans n sp ”; BMNH • 1 ♂; “ ♂ // Stn. No. 32 // Stream with falls and in grassy pools 1000 ft. // S. AFRICA: Cape Province. Caledon District. J. Balfour-Browne. B. M. 1954 - 797 // Station 32 // Prépar. Genit. N ° 25165.4 // J. Delève det., 1965 Ct. elegans n sp ”; BMNH • 1 ♂; “ ♂ // Stn. No. 32 // Stream with falls and in grassy pools 1000 ft. // S. AFRICA: Cape Province. caledon District. J. Balfour-Browne. B. M. 1954 - 797 // Prépar. Genit. N ° 25165.5 // J. Delève det., 1965 Ct. elegans n sp ”; BMNH • 1 ♀; “ ♀ // Stn. No. 32 // Stream with falls and in grassy pools 1000 ft. // S. AFRICA: Cape Province. Caledon District. J. Balfour-Browne. B. M. 1954 - 797. // J. Delève det., 1965 Ct. elegans n sp ”; BMNH • 1 ♀; “ ♀ // Stn. No. 43. // Tradouw Pass. 13. iii. 1954. // On waterfall and in stony stream below, 1500 ft // S. AFRICA: Cape Province. Swellendam District. J. Balfour-Browne. B. M. 1954 - 797. // J. Delève det., 1965 Ct. elegans n. sp ”; BMNH • 1 ♀; “ Paratype // ♀ // Stn. No. 32 // Stream with falls and in grassy pools 1000 ft. // S. AFRICA: Cape Province. Caledon District. J. Balfour-Browne. B. M. 1954 - 797. // J. Delève det., 1965 Ct. elegans n. sp ”; BMNH • 1 ex.; “ Stn. No. 43. // Tradouw Pass. 13. iii. 1954. // On waterfall and in stony stream below, 1500 ft // S. AFRICA: Cape Province. Swellendam District. J. Balfour-Browne. B. M. 1954 - 797. // J. Delève det., 1965 Ct. elegans n. sp ”; BMNH • 23 ex.; “ Stn. No. 32 // Stream with falls and in grassy pools 1000 ft. // S. AFRICA: Cape Province. Caledon District. J. Balfour-Browne. B. M. 1954 - 797. // ♀ // J. Delève det., 1965 Ct. elegans n sp ”; BMNH.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025559247FDFBE8FCFDD6FAF7.taxon	description	Figs 1 B, 4 B, 7 B, 11 B, 14 B	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025559247FDFBE8FCFDD6FAF7.taxon	materials_examined	Material examined SOUTH AFRICA • 1 ♂; “ ♂ // Stn. No. 77 // Kruiseivier, 19. iii. 1954. in moss on falls. // S. AFRICA: Cape Province, Humansdorp District. J. Balfour-Browne. B. M. 1957 - 797. // Prépar. genit. N ° 20165.8 // J. Delève det., 1965 Ctenelmis harrisoni Delève ”; BMNH • 1 ♂; “ ♂ // Stn. No. 77 // Kruiseivier, 19. iii. 1954. in moss on falls. // S. AFRICA: Cape Province, Humansdorp District. J. Balfour-Browne. B. M. 1957 - 797. // Prépar. genit. N ° 241064.6 // J. Delève det., 1965 Ctenelmis harrisoni Delève ”; BMNH • 2 ♀♀ (BMNH): “ ♀ // Stn. No. 77 // Kruiseivier, 19. iii. 1954. in moss on falls. // S. AFRICA: Cape Province, Humansdorp District. J. Balfour-Browne. B. M. 1957 - 797. // J. Delève det., 1965 Ctenelmis harrisoni Delève ”; BMNH • 1 ex.; “ 3 M S. Africa Great Berg River French Hock Forest Reserve 24. 5. 50 // J. Delève det., 1964 Ct. harrisoni Del. // H. E. Hinton collection. B. M. 1977 - 566. ”; illustrated in Figs 1 B, 4 B, 7 B, 11 B, 14 B; BMNH.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025559247FDE8EF5EFACBF969.taxon	materials_examined	Material examined SOUTH AFRICA • 1 ex.; “ C. B. Exp. // Coll. Van de Poll. 1937 - 744 // Helmis incerta ty Grouve ”; BMNH • 1 ♂ (BMNH): “ ♂ // Stn. No. 77 // Krulsrivier, 19. iii. 1954. in moss on falls. // S. AFRICA: Cape Province, Humansdorp District. J. Balfour-Browne. B. M. 1957 - 797. // J. Delève det., 1965 Ct. incerta Grouv ”; BMNH • 2 ♀♀; “ ♀ // Stn. No. 77 // Krulsrivier, 19. iii. 1954. in moss on falls. // S. AFRICA: Cape Province, Humansdorp District. J. Balfour-Browne. B. M. 1957 - 797. // J. Delève det., 1965 Ct. incerta Grouv ”; BMNH.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025559247FDF5ECDBFD66F80F.taxon	materials_examined	Material examined SOUTH AFRICA • 1 ♂; “ Holo- type // ♂ // Stn. No. 39 // S. AFRICA Cape Province. Swellendam District. J. Balfour-Browne. B. M. 1954 - 797. // Cape Province. Swellendam. Wolfkloof, 12. III. 1954. In mountain stream In deep gorge, 1500 ft // Prépar. Genit. N ° 19165.3 // J. Delève det., 1965 Ctenelmis rufipes n. sp. // NHMUK 013792805 ”; BMNH.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230255A9248FD9EE868FDDFF920.taxon	description	Figs 1 C, 4 C, 7 C, 11 C, 14 C	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230255A9248FD9EE868FDDFF920.taxon	type_taxon	Type species Ctenelmis discrepans Delève, 1964.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230255A9248FD9EE868FDDFF920.taxon	diagnosis	Differential diagnosis Paractenelmis is characterized by the combination of the following characters: 1) body (Figs 1 C, 7 C) elongate; 2) antennae with segments 3 – 10 filiform; segment 11 longer; 3) surface of the pronotum (Figs 3, 4 C, 7 C) granulose; anterolateral angles moderately produced; sides arcuate; sublateral carinae complete, in the middle zagged inwards; median groove almost complete, narrowed in basal half, with carinate outline; 4) surface of the elytra (Figs 1 C, 7 C) granulose; sides subparallel in basal 2 / 3, then tapered into rounded apex; odd intervals almost entirely carinate, even intervals carinate only at base; 5) prosternum moderately short in front of procoxae without chin piece; anterior margin without distinct indentation; prosternal process moderately narrow with rounded apex (Fig. 11 B); 6) legs with femora stout, tarsal claws (Fig. 14 C) with one subbasal tooth.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230255A9248FD9EE868FDDFF920.taxon	discussion	Remarks The subgenus was erected based on the presence of a single subbasal tooth on the tarsal claws, in contrast with Ctenelmis, which has at least two subbasal teeth or pectinate tarsal claws. Larva Unknown.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230255A9248FD9EE868FDDFF920.taxon	distribution	Distribution Endemic to South Africa.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230255A9248FE4FECEFFBE3F807.taxon	description	Figs 1 C, 4 C, 7 C, 11 C, 14 C	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230255A9248FE4FECEFFBE3F807.taxon	materials_examined	Material examined SOUTH AFRICA • 1 ♂; “ ♂ // 218 A S. Africa Great Berg River Groot Drakenstein 12. 3. 51 // Prépar. Genit. N ° 20464.3 // Para - type // J. Delève det., 1965 Paractenelmis discrepans n. sp. // H. E. Hinton collection. B. M. 1977 - 566. ”; illustrated in Figs 1 C, 4 C, 7 C, 11 C, 14 C; BMNH.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230255A9248FDF0EB0AFB97FDA5.taxon	materials_examined	Material examined SOUTH AFRICA • 1 ♂; “ Type // ♂ // Cape Province. Swellendam. Wolfkloof, 12. III. 1954. In mountain stream In deep gorge, 1500 ft. // S. AFRICA Cape Province. Swellendam District. J. Balfour-Browne. B. M. 1954 - 797. // Prépar. Genit. N ° 191651 // J. Delève det., 1965 Ctenelmis (tibialis n. sp // NHMUK 013792807 ”; BMNH • 1 ♂; “ Para- type // ♂ // Stn. No. 274 // S. AFRICA: Angola. Hulia District. J. Balfour-Browne. B. M. 1954 - 797. // Tampa, ca. 4000 ft., 15. vi. 1954. drying pools in sandy river bed, foul water. // Prépar. Genit. N ° 15165.1 // J. Delève det., 1965 Ctenelmis (tibialis n. sp. // NHMUK 013792808 ”; BMNH.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230255B9249FE5EECCCFB22F800.taxon	description	Figs 1 D, 4 D, 7 D, 11 D, 14 D	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230255B9249FE5EECCCFB22F800.taxon	materials_examined	Material examined MADAGASCAR • 1 ex.; “ Co- type // antongil Bay Madagascar 1910. 220 // Madagascar B. d’antongil // Helmis binervosa Coty. Grou ”; BMNH • 1 ex.; “ Co- type // Madagascar. A. Mocquerys. 99 - 96. // Helmis binervosa C. ty. Grouv ”; BMNH • 1 ex.; “ MADAGASCAR, 19. - 20. i. 2013, ISALO N. P., Oasïs, 879 m, S 22 ° 37 ′ 05 ″, E 45 ° 21 ′ 08 ″, M. Trýzna leg. // BMNH {E} 2015 - 39 ”; illustrated in Figs 1 D, 4 D, 7 D, 11 D, 14 D; BMNH.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230255B9249FDFFEB0BFB50FA28.taxon	description	Figs 1 D, 4 D, 7 D, 11 D, 14 D	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230255B9249FDFFEB0BFB50FA28.taxon	type_taxon	Type species Elmidolia sericans Fairmaire, 1897.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230255B9249FDFFEB0BFB50FA28.taxon	diagnosis	Differential diagnosis Elmidolia is characterized by the combination of the following characters: 1) body (Figs 1 D, 7 D) elongate; 2) antennae thin; segments 3 – 10 filiform; segment 11 longer; 3) surface of the pronotum (Figs 1 D, 4 D, 7 D) alutaceous to moderately smooth; lateral margin serrate; anterolateral angles moderately produced; sides arcuate; feeble sublateral carinae in basal 1 / 3; median longitudinal groove thin and shallow; 4) surface of the elytra (Figs 1 D, 7 D) alutaceous, moderately smooth; sides subparallel in basal 2 / 3, then tapered into rounded apex; granulate sublateral carinae, more distinct one on 6 th and a feeble one on 8 th interval; intervals nearly flat; 5) prosternum long in front of procoxae; anterior margin laterally lowered and indented; prosternal process moderately wide with arrow-head to rounded apex (Fig. 11 D); 6) legs with femora stout, tarsal claws (Fig. 14 D) simple.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230255B9249FDFFEB0BFB50FA28.taxon	description	Larva Briefly diagnosed by Bertrand (1962) as Helminthopsoides.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230255B9249FDFFEB0BFB50FA28.taxon	distribution	Distribution Endemic to Madagascar.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230255B9249FDCEEFF7FACBF94E.taxon	materials_examined	Material examined MADAGASCAR • 1 ♂; “ ♂ // TYPE // Madagascar R. Antsampandrano // F. M. 95 / 25.7.58 F. Starmuhler // F. M. 95 / 25.7.58 ANTSAMPANDRANO - Badr [O. Madagascar. 1958 leg. F. Starmuhler] // Prépar. genit N ° 23163.9 // J. Delève det., 1963 Elmidolia opaca n. sp. Type // R. I. Sc. N. B. I. G .. 22.864 ”; IRSNB.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
038562302558924AFD9DECE6FDDCF80F.taxon	description	Figs 1 E, 4 E, 7 E, 11 E, 14 E	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
038562302558924AFD9DECE6FDDCF80F.taxon	materials_examined	Material examined SOUTH AFRICA • 1 ♀; “ SYN- TYPE // C. Bon. spei // TYPE // 14548 // Fry Coll. 1905 - 100 // Helmis capensis ”; BMNH • 1 ex.; “ Coll. Van de Poll. 1937 - 744 // H. capensis ty Grou C. B. Exp ”; illustrated in Figs 1 E, 4 E, 7 E, 11 E, 14 E; BMNH.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
038562302558924AFDF5EB0BFC54F95E.taxon	description	Figs 1 E, 4 E, 7 E, 11 E, 14 E	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
038562302558924AFDF5EB0BFC54F95E.taxon	type_taxon	Type species Helmis capensis Grouvelle, 1890.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
038562302558924AFDF5EB0BFC54F95E.taxon	diagnosis	Differential diagnosis Elpidelmis is characterized by the combination of the following characters: 1) body (Figs 1 E, 7 E) robust, elongate; 2) antennae with segments 3 – 10 filiform; segment 11 longer; 3) surface of the pronotum (Figs 1 E, 4 E, 7 E) granulose; anterolateral angles distinctly produced; sides broadly arcuate; sublateral carinae indistinct to distinct slightly beyond the basal half; rather wide median groove almost complete, with carinate outline or in a form of large fovea; 4) surface of the elytra (Figs 1 E, 7 E) granulose; sides subparallel in basal 2 / 3, then tapered into rounded apex; odd intervals almost entirely carinate, even intervals carinate only at base; 5) prosternum long in front of procoxae; anterior margin laterally lowered and indented; prosternal process wide, broadly rounded with medial projection (Fig. 11 E); 6) legs with femora stout, tarsal claws (Fig. 14 E) simple.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
038562302558924AFDF5EB0BFC54F95E.taxon	discussion	Remarks The two known species differ markedly in pronotal structure. In Elpidelmis fossicollis, the pronotum lacks any carinae, and the median groove is modified into a large central fovea. In contrast, the pronotum of Elp. capensis has distinct sublateral carinae extending slightly beyond the basal half and the median groove is longitudinal, conspicuously broad, and bordered by carinae.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
038562302558924AFDF5EB0BFC54F95E.taxon	description	Larva Described and illustrated by Bertrand (1965).	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
038562302558924AFDF5EB0BFC54F95E.taxon	distribution	Distribution Endemic to South Africa. The record from Angola is omitted (see Discussion).	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
038562302559924BFDE3EB0AFAB8FE1B.taxon	materials_examined	Material examined SOUTH AFRICA • 1 ex.; “ Hoogekraalpas Hoëkrallrivier 7. xi. 2009 // SA 175 // SOUTH AFRICA BMNH {E} 2017 - 45 P. M. Hammond // NHMUK 013652258 // Elpidelmis fossicollis Delève, 1964 K. Matsumoto det. 2019 ”; BMNH • 1 ex.; “ SOUTH AFRICA West Cape. Hoëkraal River 07 November 2009 P. M. Hammond // BMNH {E} 2011 - 81 // Elpidelmis fossicollis Delève, 1964 K. Matsumoto det. 2019 ”; BMNH.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
038562302559924CFDBCECEFFD57FEA1.taxon	description	Figs 1 F, 4 F, 7 F, 11 F, 14 F	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
038562302559924CFDBCECEFFD57FEA1.taxon	materials_examined	Material examined DEMOCRATIC REPUBLIC OF THE CONGO • 1 ♂; “ ♂ // HOLOTYPUS // Scobe de M-Bolo // MUS. ROY. AFR. CENTR. Tshuapa: Terr. Bikoro, Mabali (à la lumière) N. Leleup IX / X- 1959 // Prépar. genit. N ° 16164.12 // J. Delève det., 1964 Eumicrodinodes bipustulatus n. sp. Type // TYPE ”; MRAC • 1 ex.; “ ♀ // J. Delève det., 1965 Eumicrodinodes bipustulatus m // H. E. Hinton collection. B. M. 1977 - 566. ”; illustrated in Figs 1 F, 4 F, 7 F, 11 F, 14 F; BMNH.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
038562302559924BFD90E826FF43F920.taxon	description	Figs 1 F, 4 F, 7 F, 11 F, 14 F	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
038562302559924BFD90E826FF43F920.taxon	type_taxon	Type species Eumicrodinodes bipustulatus Delève, 1965.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
038562302559924BFD90E826FF43F920.taxon	diagnosis	Differential diagnosis Eumicrodinodes is characterized by the combination of the following characters: 1) body (Figs 1 F, 7 F) elongate; 2) antennae with segments 3 – 10 filiform; segment 11 longer; 3) surface of the pronotum (Figs 1 F, 4 F, 7 F) coarse to moderately smooth; anterolateral angles moderately produced; sides arcuate; carinae absent; median groove absent or indistinct; 4) surface of the elytra (Figs 1 F, 7 F) moderately coarse to smooth; sides subparallel in basal 2 / 3, then tapered into rounded apex; feeble granulate sublateral carinae on 6 th and 7 th intervals; intervals nearly flat; 5) prosternum moderately long in front of procoxae; anterior margin laterally lowered and indented; prosternal process wide with broadly rounded apex (Fig. 11 F); 6) legs with spindle-shaped femora, tarsal claws (Fig. 14 F) with one basal tooth.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
038562302559924BFD90E826FF43F920.taxon	discussion	Similar genera A simple pronotum, and tarsal claws with a basal tooth place Eumicrodinodes close to Pseudomacronychus. However, Eumicrodinodes can be reliably distinguished by its spindle-shaped femora and elytra with a pair of feeble sublateral carinae. Compared to other taxa with spindle-shaped femora, such as Microdinodes and Paramicrodinodes, it differs by its distinctly wide prosternal process. Larva Unknown.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
038562302559924BFD90E826FF43F920.taxon	distribution	Distribution Known from Democratic Republic of the Congo, Gabon, Republic of the Congo.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230255E924CFD87EB86FE65FDB3.taxon	materials_examined	Material examined REPUBLIC OF THE CONGO • 1 ♂; “ ♂ // Para- type // Ozdala Congo octobu // Prépar. genit. N ° 13265.16 // J. Delève det., 1965 Eumicrodinodes concolor n. sp. // I. R. Sc. N. B. I. G. 25.041 Coll. & det. J. Delève ”; IRSNB.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230255E924CFE51E890FACBFCA6.taxon	materials_examined	Material examined GABON • 1 ♂; “ ♂ // Para- type // Gabon, Lac Zile J. De Muizon // Prépar. genit. N ° 141171.2 // J. Delève det., 1971 Eumicrodinodes 4 - maculatus n. sp. // I. R. Sc. N. B. I. G. 25.041 Coll. & det. J. Delève ”; IRSNB.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230255E924CFDF2E96AFC4FF801.taxon	description	Figs 1 G, 4 G, 7 G, 11 G, 14 G	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230255E924CFDF2E96AFC4FF801.taxon	type_taxon	Type species Exolimnius ungulatus Delève, 1954.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230255E924CFDF2E96AFC4FF801.taxon	diagnosis	Differential diagnosis Exolimnius is characterized by the combination of the following characters: 1) body (Figs 1 G, 7 G) elongate; 2) antennae thin; segments 3 – 10 filiform; segment 11 longer; 3) surface of the pronotum (Figs 1 G, 4 G, 7 G) alutaceous to moderately smooth; anterolateral angles moderately produced; sides moderately arcuate; sublateral carinae in basal 3 / 5; prescutellar carinae about half as long; median longitudinal groove thin and shallow; 4) surface of the elytra (Figs 1 G, 7 G) smooth; sides subparallel in basal 2 / 3, then tapering towards rounded apex; granulate sublateral carinae on 5 th and 7 th intervals; intervals nearly flat; 5) prosternum long in front of procoxae; anterior margin laterally lowered and indented; prosternal process moderately wide with rounded apex (Fig. 11 G); 6) legs with femora stout, tarsal claws (Fig. 14 G) with one subbasal tooth.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230255E924CFDF2E96AFC4FF801.taxon	discussion	Similar genera Exolimnius can be confused with some species of Microdinodes that also have a pronotum with sublateral and prescutellar carinae. However, Exolimnius differs by having a longer prosternum and stout femora, whereas Microdinodes has spindle-shaped femora. Larva Unknown.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230255E924CFDF2E96AFC4FF801.taxon	distribution	Distribution Endemic to Madagascar.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230255F924DFD84EB0AFE6EFE1B.taxon	description	Figs 1 G, 4 G, 7 G, 11 G, 14 G	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230255F924DFD84EB0AFE6EFE1B.taxon	materials_examined	Material examined MADAGASCAR • 1 ex.; “ Madagascar Ampamanerana ruiss. // F. M. 129 / 5.8.58 F. Starmühler // J. Deleve det., 1963 Exol. Lateritia Fairm. // H. E. Hinton B. M. 1977 - 566. ”; illustrated in Figs 1 G, 4 G, 7 G, 11 G, 14 G; BMNH.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230255F924EFD8CE826FACBFE7E.taxon	description	Figs 1 H, 4 H, 7 H, 11 H, 14 H	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230255F924EFD8CE826FACBFE7E.taxon	type_taxon	Type species Helminthocharis picea Grouvelle, 1906.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230255F924EFD8CE826FACBFE7E.taxon	diagnosis	Differential diagnosis Helminthocharis is characterized by the combination of the following characters: 1) body (Figs 1 H, 7 H) compact, obovate; 2) antennae with segments 3 – 10 filiform; segment 11 longer; 3) surface of the pronotum (Figs 1 H, 4 H, 7 H) moderately smooth to glabrous; anterolateral angles feebly produced; sides broadly arcuate narrowing to prolonged anterior margin; sublateral carinae almost complete; prescutellar carinae absent; median groove absent to barely noticeable as a thin line; 4) surface of the elytra (Figs 1 H, 7 H) smooth to glabrous; sides subparallel in basal 2 / 3, then narrowed into rounded apex or arcuately narrowing from base to rounded apex; distinct sublateral carinae on 5 th and at least basally on 7 th interval; intervals flat, partly diminished; 5) prosternum moderately short in front of procoxae; anterior margin laterally lowered, without distinct indentation; prosternal process wide with subtriangular apex (Fig. 11 H); 6) legs with femora stout to clavate, tarsal claws (Fig. 14 H) simple.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230255F924EFD8CE826FACBFE7E.taxon	discussion	Remarks Partial lateral carinae on the pronotum and elytra, curving inward from the base, are visible in the dorsolateral view (Fig. 7 H). These carinae were observed in one described species and several unidentified specimens. However, as no other species were available for comparison and they are not mentioned in the descriptions or illustrations of known species, their presence requires further confirmation to determine whether they are a generic or species-specific trait. Similar genera An obovate body and long sublateral carinae on the pronotum place Helminthocharis close to Pachyelmis and Sphragidelmis. It can be distinguished from Pachyelmis by its narrower and more elongate prosternal process. In contrast to Sphragidelmis, it has longer sublateral carinae on the pronotum, lacks prescutellar, arcuately diverging carinae, and the lateral margin of the pronotum and elytra is smooth, not serrate. Larva Unknown.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230255F924EFD8CE826FACBFE7E.taxon	distribution	Distribution Widespread in Angola, Burkina Faso, Central African Republic, Côte d’Ivoire, Democratic Republic of the Congo, Ghana, Liberia, Madagascar, Republic of the Congo, Rwanda, South Africa, Tanzania. New country records for Cameroon, Kenya, Mali, Sierra Leone, Togo, Uganda and Zambia.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230255C924EFE44EBBCFAD6FD1F.taxon	description	Figs 1 H, 4 H, 7 H, 11 H, 14 H	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230255C924EFE44EBBCFAD6FD1F.taxon	materials_examined	Material examined REPUBLIC OF THE CONGO • 2 ex.; “ Soil-Zoological Exp. Congo-Brazzaville Kindamba, Méya near Adam cave // 7.11.1963. No 114 in brook bed leg. Endródy-Younga // J. Delève det., 1966 H. abdominalis nigra subsp. n. // Paratypus ”; illustrated in Figs 1 H, 4 H, 7 H, 14 H; BMNH • 1 ex.; “ Para- type // Soil-Zoological Exp. Congo-Brazzaville Kindamba, Méya near Adam cave // 7.11.1963. No 114 in brook bed leg. Endródy-Younga // J. Delève det., 1966 H. abdominalis nigra subsp. N. ”; illustrated in Fig. 11 H; BMNH.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230255C924FFE42ECF6FB86F928.taxon	description	Figs 1 I, 4 I, 8 A, 11 I, 14 I	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230255C924FFE42ECF6FB86F928.taxon	type_taxon	Type species Helminthopsis lucida Grouvelle, 1906.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230255C924FFE42ECF6FB86F928.taxon	diagnosis	Differential diagnosis Helminthopsis is characterized by the combination of the following characters: 1) body (Figs 1 I, 8 A) elongate; 2) antennae thin; segments 3 – 10 filiform; segment 11 longer; 3) surface of the pronotum (Figs 1 I, 4 I, 8 A) alutaceous to glabrous; anterolateral angles moderately produced; sides moderately to almost broadly arcuate; sublateral carinae feeble to distinct, reaching basal 1 / 5 to 2 / 5; median longitudinal groove thin and shallow; 4) surface of the elytra (Figs 1 I, 8 A) alutaceous to glabrous; sides subparallel in basal 2 / 3, then narrowed into rounded apex; granulate sublateral carina on 6 th interval; intervals nearly flat; 5) prosternum moderately long in front of procoxae; anterior margin laterally lowered and indented; prosternal process moderately wide with rounded apex (Fig. 11 I); 6) legs with femora stout, tarsal claws (Fig. 14 I) simple.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230255C924FFE42ECF6FB86F928.taxon	discussion	Remarks This genus exhibits considerable variation, as reflected in the seven species groups proposed by Delève (1965 a) based solely on male genitalia. Given the vast number of species of Helminthopsis, including those within its subgenus Elmidoliana, the pronounced differences in body shape, coloration, and the presence and distribution of the dorsal plastron tomentum, as well as the enigmatic placement of Ludyella, known only from a single holotype, a comprehensive revision of these taxa is necessary to clarify their monophyly. Similar genera This genus resembles Elmidolia in body shape, a similar pronotum, elytral carinae composed of granules, and simple tarsal claws but differs by having only one sublateral carina on the elytra, whereas Elmidolia has two. Helminthopsis also shares similarities with Lathridelmis and Trachelminthopsis. It can be distinguished from Lathridelmis by its broader body shape and a smoother, non-rugose cuticle. Compared to Trachelminthopsis, it differs by the presence of elytral carinae, smoother cuticle, and by the pronotum that has longitudinal median groove, whereas Trachelminthopsis has a groove in the form of small fovea. Larva Described and illustrated by Bertrand (1962).	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230255C924FFE42ECF6FB86F928.taxon	distribution	Distribution Widespread in Angola, Burkina Faso, Cameroon, Central African Republic, Côte d’Ivoire, Democratic Republic of the Congo, Gabon, Ghana, Guinea, Kenya, Liberia, Republic of the Congo, South Africa, Zimbabwe. New country records for Nigeria, Sierra Leone, Togo and Uganda.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230255D924FFDE1ED09FCD6F83B.taxon	materials_examined	Material examined SOUTH AFRICA • 1 ♂; “ ♂ // Para- type // Para- type // S. RHODESIA: Marandellas. ii. 1962. 18 ° 10 ′ S. 31 ° 36 ′ E J. S. Weir. M. V. light. B. M. 1963 - 18 // See slide Coll. No. // Prépar. Genit. N ° 19364.1 // J. Delève det., 1964 Helminthopsis bifida n. sp. (macropt.) ”; BMNH.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025429250FD94EB0AFE19FE31.taxon	materials_examined	Material examined DEMOCRATIC REPUBLIC OF THE CONGO • 1 ♂; “ ♂ // TYPE / KAI BAKU 7 - V- 26 A. COLLArT // Prépar. genit. N ˚ 10364.5 // J. Delève det., 1944 H. gracilis n. sp. // I. R. Sc. N. B. I. G. 25.041 Coll. & det. J. Delève ”; IRSNB.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025429250FDECE816FACBFD26.taxon	materials_examined	Material examined GUINEA • 1 ♀; “ ♀ // Para- type // Guinee Chute du Konkouré 15. II. 57 H. Bertrand // Prépar. genit. N ˚ 20864.6 // J. Delève det., 1964 Helminthopsis lepida n. sp. // I. R. Sc. N. B. I. G. 25.041 Coll. & det. J. Delève ”; IRSNB.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025429250FD9DE8FFFB66FC2A.taxon	materials_examined	Material examined KENYA • 1 ♀; “ KENYA Camp 1 de l’Elgon M’ ELGON, VERS’ EST 2.100 m. // MUSÉUM DE PARIS Mission de l’Omo C. ARAMBOURG P. - A. CHAPPUIS & R. JEANNEL 1932 - 1933 // ♀ // J. Delève det., 1938 Helminthopsis lucida Gr. // I. R. Sc. N. B. I. G. 25.041 Coll. & det. J. Delève ”; IRSNB.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025429250FD80EE0BFC26FB50.taxon	materials_examined	Material examined LIBERIA • 2 ex.; “ LIBERIA Suakoko X II- 19 - 51 // 6 - 9 pm light trap Blickenstaff // BM. 1979 - 136 // Para- type // J. Delève det., 1972 H. marginalis n. sp. ”; BMNH.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025429250FD85EEF0FD3FFA24.taxon	materials_examined	Material examined REPUBLIC OF THE CONGO • 1 ex.; “ Soil-Zoological Exp. Congo-Brazzaville Kindamba, Méya near Adam cave // 7.11.1963. No 114 in brook bed leg. Endródy-Younga // J. Delève det., 1966 Helminthopsis melanaria n. sp. // Paratypus ”; BMNH.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025429250FD93EFFCFE1AF928.taxon	materials_examined	Material examined DEMOCRATIC REPUBLIC OF THE CONGO • 1 ♂; “ ♂ // TYPE / KAI BAKU 7 - VII- 26 A. COLLArT // Prépar. genit. N ˚ 103641 // J. Delève det., 1943 H. perplexa n. sp // I. R. Sc. N. B. I. G. 25.041 Coll. & det. J. Delève ”; BMNH.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025439252FDE8E990FC13FE38.taxon	description	Figs 2 A, 5 A, 8 B, 12 A, 14 J	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025439252FDE8E990FC13FE38.taxon	type_taxon	Type species Helminthopsis luteopicta Delève, 1938.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025439252FDE8E990FC13FE38.taxon	diagnosis	Differential diagnosis Elmidoliana is characterized by the combination of the following characters: 1) body (Figs 2 A, 8 B) elongate; 2) antennae thin; segments 3 – 10 filiform; segment 11 longer; 3) surface of the pronotum (Figs 2 A, 5 A, 8 B) alutaceous to smooth; anterolateral angles moderately produced; sides moderately to almost broadly arcuate; sublateral carinae indistinct to feeble, reaching to basal 1 / 3; median longitudinal groove thin and shallow; 4) surface of the elytra (Figs 2 A, 8 B) alutaceous to smooth; sides subparallel in basal 2 / 3, then narrowed into rounded apex; granulate sublateral carina on 6 th interval; intervals nearly flat; 5) prosternum moderately long in front of procoxae; anterior margin laterally lowered and indented; prosternal process moderately wide with rounded apex (Fig. 12 A); 6) legs with femora stout, tarsal claws (Fig. 14 J) simple.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025439252FDE8E990FC13FE38.taxon	discussion	Similar genera This subgenus was established based on its dark, matt, predominantly alutaceous surface and the presence of yellow patterns on the elytra. Helminthopsis and its subgenus Elmidoliana are likely closely related to the genus Ludyella, but a thorough revision of these taxa is needed to clarify their relationships and resolve their monophyly. Larva Unknown.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025439252FDE8E990FC13FE38.taxon	distribution	Distribution Widespread in Angola, Cameroon, Côte d’Ivoire, Democratic Republic of the Congo, Gabon, Ghana, Liberia, Nigeria, Republic of the Congo, South Africa, Tanzania, Zambia, Zimbabwe. New country records for Kenya, Sierra Leone and Uganda.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025409252FE71E819FCD6FD0A.taxon	materials_examined	Material examined DEMOCRATIC REPUBLIC OF THE CONGO • 1 ♂; “ ♂ // Para- type // Elisabethville (à la lumière) 1953 / 1955 Ch. Seydel // Prépar. genit. N ˚ 19164.3 // J. Delève det., 1964 Helminthopsis compacta n. sp. // I. R. Sc. N. B. I. G. 25.041 Coll. & det. J. Delève ”; IRSNB.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025409252FE4BE928FB5BFC1D.taxon	materials_examined	Material examined ZAMBIA • 1 ♂; “ ♂ // Para- type // Para- type // S. RHODESIA: Mwinilunga District. Ikelenge, nr. Kalene Zambezi Rapids. // E. Pinhey. 3 v. 1963 M. V. Light trap B. M. 1963 - 742 // See slide Coll. No. // Prépar. Genit. N ° 20364.7 // J. Delève det., 1965 H. (Elmidoliana) elongata n. sp. ”; BMNH.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025409252FE32EE20FCDBFAF0.taxon	description	Figs 2 A, 5 A, 14 J	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025409252FE32EE20FCDBFAF0.taxon	materials_examined	Material examined DEMOCRATIC REPUBLIC OF THE CONGO • 1 ♀; “ PARATYPE // Bas-Uele: Koteli 1 - 21 - I- 1925 Dr H. Schouteden // ♀ // J. Delève det., 1938 Helminthopsis luteopicta n. sp. // I. R. Sc. N. B. I. G. 25.041 Coll. & det. J. Delève ”; illustrated in Figs 2 A, 5 A, 14 J; IRSNB.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025409252FE3DEF3FFC5DF9E8.taxon	materials_examined	Material examined NIGERIA • 1 ♂; “ ♂ // HOLOTYPE // Nigeria Ile. Ife 15. III. 69 // J. T. Medler DA- 6 // Prépar. Genit. N ° 26870.2 // J. Delève det., 1970 H. (Elmidoliana) luteopicta Delève // J. Delève det., 1973 Subsp. nigeriana // I. R. Sc. N. B. I. G. 25.041 Coll. & det. J. Delève ”; IRSNB.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025409252FE73EC37FD33F8E0.taxon	materials_examined	Material examined ANGOLA • 1 ♂; “ ♂ // Para- type // Angola Env. Dundo 23. V. 1966 // Forêt. galerie Sources R, Mussungue Piscine du Dundo // Ang 198541 // J. Delève det., 1966 Elmidoliana machadoi n. sp. // I. R. Sc. N. B. I. G. 25.041 Coll. & det. J. Delève ”; IRSNB.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025409252FE4DED2EFACBF83C.taxon	materials_examined	Material examined NIGERIA • 1 ♂; “ ♂ // HOLOTYPE // Nigeria Ile. Ife 20. II. 70 // J. T. Medler D. 7 // Prépar. Genit. N ° 1.10.70.2 // J. Delève det., 1973 Elmidoliana medleri n. sp. // I. R. Sc. N. B. I. G. 25.041 Coll. & det. J. Delève ”; IRSNB.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025419253FDFEEC21FCA9F80F.taxon	description	Figs 8 B, 12 A	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025419253FDFEEC21FCA9F80F.taxon	materials_examined	Material examined KENYA • 1 ex.; “ Kenya 3. vii. 2002 Kakamega Forest N. R. primary forest (8) 0.21,34 N; 34.5139 E 1600 m, light trap ”; MFNB. SIERRA LEONE • 1 ex.; “ Sierra Leone, 80 m, Kalainkay r. Kamabai Northern Prov. 3 - 6. xi. 15; // N 09 ° 10 ′ 52 ″; W 11 ° 56 ′ 44 ″ Light Trap, R. Goff coll. Leg. Smith. R & Takano. H, BMNH (E) 2016 - 197 ”; illustrated in Figs 8 B, 12 A; BMNH. UGANDA • 1 ex.; “ UGANDA: Mukono Bujikwe, Mubeya River 1141 m a. s. l. 00 ° 20.000 ′ N / 33 ° 08.476 ′ E 01. 12.09, leg. J. P. Obubu ”; NHMW.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025419253FE4CEB0AFA94FE3A.taxon	materials_examined	Material examined GHANA • 1 ♂; “ ♂ // Para- type // GHANA: Ashanti region Kwadaso 259 m, N 6 55 – W 1 39 Dr. S. ENDRODY-YOUNGA // Nr. 366 – light trap on field, UV light 26. V. 1969 // Prépar. Genit. N ° 271072.4 // J. Delève det., 1972 E. micros n. sp. // I. R. Sc. N. B. I. G. 25.041 Coll. & det. J. Delève ”; IRSNB.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025419253FE7EE807FCE9FD3F.taxon	materials_examined	Material examined GHANA • 1 ♂; “ ♂ // GHANA: Ashanti region Kwadaso 320 m, N 6 42 – W 1 39 Dr. S. ENDRODYYOUNGA // Nr. 345 black light 5. V. 1969 // Para- type // J. Delève det., 1972 E. propinqua n. sp. // I. R. Sc. N. B. I. G. 25.041 Coll. & det. J. Delève ”; IRSNB.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025419253FE7BE903FD78FC30.taxon	materials_examined	Material examined ZIMBABWE • 1 ♂; “ ♂ // Type // Holotype // S. RHODESIA: Marandellas. ii. 1962. 18 ° 10 ′ S. 31 ° 36 ′ E J. S. Weir. M. V. light. B. M. 1963 - 18 // See slide Coll. No. // Prépar. Genit. N ° 27364.2 // J. Delève det., 1965 H. (Elmidoliana) rhodesiana n. sp ”; BMNH.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025419253FE0FEF25FC15FA1D.taxon	materials_examined	Material examined GHANA • 1 ♂; “ ♂ // GHANA: Ashanti region Kumasi, Nhiasu 330 m, N 6 43 – W 1 36 Dr. S. ENDRODY-YOUNGA // Nr. 221 at light 28. V. 1967 // 2 // Para- type // J. Delève det., 1972 E. arcuata n. sp. // I. R. Sc. N. B. I. G. 25.041 Coll. & det. J. Delève ”; IRSNB.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025419253FE3AEE16FACBFB0F.taxon	materials_examined	Material examined ZAMBIA • 1 ♂; “ ♂ // Type // TYPE // N. RHODESIA: Mwinilunga District, Ikelenge, nr. Kalene Zambezi Rapids // Zambezi Rapids. // E. Pinhey. 3 v. 1963 M. V. Light trap B. M. 1963 - 742 // See slide Coll. No. // Prépar. Genit. N ° 20364.8 // J. Delève det., 1965 H. (Elmidoliana) zambezica n. sp. ”; BMNH.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025469254FD93EFFAFC1EF8DD.taxon	description	Figs 2 B, 5 B, 8 C, 12 B, 14 K	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025469254FD93EFFAFC1EF8DD.taxon	materials_examined	Material examined DEMOCRATIC REPUBLIC OF THE CONGO • 1 ex.; “ Lac. Tanganika: Uvira Stat. 126 27. XI. 1959 Dr R. Kiss // COLL. MUS. TERVUREN // J. Delève det., 1970 Lathr. Crenicollis Dlve // H. E. Hinton collection. B. M. 1977 - 566. ”; illustrated in Figs 2 B, 5 B, 8 C, 12 B, 14 K; BMNH • 1 ♂; “ ♂ // Para- type // Kivu: Uvira III. 1953 (J. Bouillon) // Prépar. genit. N ˚ 15364.8 // J. Delève., 1964 Lathridelmis crenicollis n. sp // I. R. Sc. N. B. I. G. 25.041 Coll. & det. J. Delève ”; IRSNB.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025469254FDFAEB0BFD3CFA36.taxon	description	Figs 2 B, 5 B, 8 C, 12 B, 14 K	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025469254FDFAEB0BFD3CFA36.taxon	type_taxon	Type species Lathridelmis crenicollis Delève, 1965.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025469254FDFAEB0BFD3CFA36.taxon	diagnosis	Differential diagnosis Lathridelmis is characterized by the combination of the following characters: 1) body (Figs 2 B, 8 C) narrow, elongate; 2) antennae with segments 3 – 10 filiform; segment 11 longer; 3) surface of the pronotum (Figs 2 B, 5 B, 8 C) rugose, granulose; anterolateral angles moderately produced; sides arcuate; sublateral carinae short, reaching to basal 2 / 5; median longitudinal groove thin and shallow; 4) surface of the elytra (Figs 2 B, 8 C) granulose, rugose; sides subparallel in basal 2 / 3, then tapered into rounded apex; feeble granulate sublateral carina on 6 th interval; intervals nearly flat; 5) prosternum moderately long in front of procoxae; anterior margin laterally lowered and indented; prosternal process moderately wide with rounded apex (Fig. 12 B); 6) legs with femora stout, tarsal claws (Fig. 14 K) simple.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025469254FDFAEB0BFD3CFA36.taxon	discussion	Similar genera This genus resembles Helminthopsis and Trachelminthopsis. It can be distinguished from Helminthopsis by its narrower body shape and more rugose cuticle. Compared to Trachelminthopsis it differs by the presence of elytral carinae, its narrower body shape, and by its pronotum that has longitudinal median groove, whereas Trachelminthopsis has groove in a form of small fovea. Larva Unknown.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025469254FDFAEB0BFD3CFA36.taxon	distribution	Distribution So far known only from Democratic Republic of the Congo.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025469255FDCFED67FE4DFAC1.taxon	description	Figs 2 C, 5 C, 8 D, 12 C, 14 L	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025469255FDCFED67FE4DFAC1.taxon	type_taxon	Type species Helmis georyssoides Grouvelle, 1890.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025469255FDCFED67FE4DFAC1.taxon	diagnosis	Differential diagnosis Leielmis is characterized by the combination of the following characters: 1) body (Figs 2 C, 8 D) obovate; 2) antennae with segments 3 – 10 filiform; segment 11 longer; 3) surface of the pronotum (Figs 2 C, 5 C, 8 D) moderately smooth to glabrous, micropunctured; lateral margin in some species with a row of spaced out granules; anterolateral angles feebly produced; sides broadly narrowing from base to prolonged anterior margin; carinae absent; median groove absent; 4) surface of the elytra (Figs 2 C, 8 D) moderately smooth to glabrous; sides broadly narrowing into rounded apex; carinae absent; intervals nearly flat; 5) prosternum moderately short in front of procoxae; anterior margin medially broadly emarginate, laterally slightly lowered, without distinct indentation; prosternal process wide, with broadly rounded apex (Fig. 12 C); 6) legs with femora stout, tarsal claws (Fig. 14 L) simple.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025469255FDCFED67FE4DFAC1.taxon	discussion	Similar genera Leielmis could be confused with Peloriolus due to their smaller, compact body size, mostly simple pronotum, and similar moderately short, medially emarginate prosternum with a wide prosternal process. However, the sides of the pronotum in Leielmis broadly narrow from the base to the prolonged anterior margin, whereas in Peloriolus, the sides are subparallel in the basal third before narrowing.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025469255FDCFED67FE4DFAC1.taxon	description	Larva Unknown.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025469255FDCFED67FE4DFAC1.taxon	distribution	Distribution Endemic to South Africa. The record from Angola is omitted (see Discussion).	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025479256FD81EC5FFAACFEA1.taxon	description	Figs 2 C, 5 C, 8 D, 12 C, 14 L	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025479256FD81EC5FFAACFEA1.taxon	materials_examined	Material examined SOUTH AFRICA • 1 ♀; “ STN. 5 // Kirstenbosch. 28. ii. 1954. « nearly dry waterfall and stream » // ♀ // S. AFRICA. Cape Province. Cape District. J. Balfour-Browne B. M. 1954 - 797. // J. Delève det., 1965 L. georyssoides Gr. // Leielmis georyssoides (Grouvelle, 1890) D T Bilton det. 2016 ”; illustrated in Figs 2 C, 5 C, 8 D, 12 C, 14 L; BMNH • 1 ♀; “ ♀ // Stn. No. 9 // Blinkwater falls, In running water (dry season) 1650 ft. 2. iii. 1954. // S. Africa. Cape Province. Cape District. J. Balfour-Browne. B. M. 1954 - 797. // J. Delève det., 1965 L. georyssoides (Gr) // Leielmis georyssoides (Grouvelle, 1890) D T Bilton det. 2016 ”; BMNH • 1 ex.; “ STN. 5 // S. AFRICA. Cape Province. Cape District. J. Balfour-Browne B. M. 1954 - 797. // Kirstenbosch. 28. ii. 1954. « nearly dry waterfall and stream » // J. Delève det., 1965 L. georyssoides Gr. // Leielmis georyssoides (Grouvelle, 1890) D T Bilton det. 2016 ”; BMNH.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025479255FDCFEF67FD8CF9D0.taxon	materials_examined	Material examined SOUTH AFRICA • 2 ex.; “ 11 / ii / 2015 South Africa WC Groote Winterhoekberge stream below Sneeugatpiek 1,300 m D T Bilton leg // Leielmis hirsutus Paratype D T Bilton 2017 // David Bilton BMNH (E) 2018 - 143 ”; BMNH.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025449256FDCAEB86FC64FB6E.taxon	materials_examined	Material examined SOUTH AFRICA • 8 ex.; “ Stn. No. 39 // Cape Province Swellendam, Wolfkloof, 12. iii. 1954. In mountain stream in deep gorge, 1500 ft. // S. AFRICA: Cape Province, Swellendam District. J. Balfour-Browne B. M. 1954 - 797 // J. Delève det., 1965 L. georyssoides (Grouv. // Leielmis gibbosus Paratype D T Bilton 2017 // David Bilton BMNH (E) 2018 - 143 ”; BMNH • 1 ex.; “ ♂ // Stn. No. 39 // Cape Province Swellendam, Wolfkloof, 12. iii. 1954. In mountain stream in deep gorge, 1500 ft. // S. AFRICA: Cape Province, Swellendam District. J. Balfour-Browne B. M. 1954 - 797 // Prépar. Genit. N ° 22265.1 // J. Delève det., 1965 L. georyssoides (Gr. // Leielmis gibbosus Paratype D T Bilton 2017 // David Bilton BMNH (E) 2018 - 143 ”; BMNH • 1 ex.; “ Stn. No. 39 // S. AFRICA: Cape Province, Swellendam District. J. Balfour-Browne B. M. 1954 - 797 // Cape Province Swellendam, Wolfkloof, 12. iii. 1954. In mountain stream in deep gorge, 1500 ft. // J. Delève det., 1965 L. georyssoides (Gr. // Leielmis gibbosus Paratype D T Bilton 2017 // David Bilton BMNH (E) 2018 - 143 ”; BMNH • 1 ex.; “ Stn. N °. 39. // In mountain stream in deep gorge, 1500 ft // Swellendam, Wolfkoof. 12. iii. 1954 // S. AFRICA: Cape Province, Swellendam District. J. Balfour-Browne B. M. 1954 - 797 // J. Delève det., 1965 L. georyssoides (Gr. // Leielmis gibbosus Paratype D T Bilton 2017 // David Bilton BMNH (E) 2018 - 143 ”; BMNH • 1 ♂; “ ♂ // S. Africa Great Berg River Upper French Hock Forest Reserve // G. S. I. R. - StreamSurvey 81 B 13. 9. 50 // J. Delève det., 1964 h)] L. georyssoides Gr. // H. E. Hinton collection. B. M. 1977 - 566. // Leielmis gibbosus Paratype D T Bilton 2017 ”; BMNH • 2 ex.; “ S. Africa Great Berg River Upper French Hock Forest Reserve // G. S. I. R. - StreamSurvey 81 B 13. 9. 50 // J. Delève det., 1964 h)] L. georyssoides Gr. // H. E. Hinton collection. B. M. 1977 - 566. // Leielmis gibbosus Paratype D T Bilton 2017 ”; BMNH.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025449257FDC0EEADFE4EFD58.taxon	description	Figs 2 D, 5 D, 8 E, 12 D, 14 M	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025449257FDC0EEADFE4EFD58.taxon	type_taxon	Type species Leptelmis gracilis Sharp, 1888.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025449257FDC0EEADFE4EFD58.taxon	diagnosis	Differential diagnosis Leptelmis is characterized by the combination of the following characters: 1) body (Figs 2 D, 8 E) narrow, elongate; 2) antennae with segments 3 – 10 filiform; segment 11 longer; 3) surface of the pronotum (Figs 2 D, 5 D, 8 E) coarse to moderately smooth; anterolateral angles moderately produced; sides arcuate before and after lateral constriction; carinae absent; median groove absent; complete transverse impression in apical half; 4) surface of the elytra (Figs 2 D, 8 E) moderately smooth; sides subparallel in basal 2 / 3, then tapered into rounded apex; carinae absent; intervals markedly impressed, nearly flat to slightly raised; 5) prosternum moderately long in front of procoxae; anterior margin almost straight, laterally lowered without distinct indentation; prosternal process wide with broadly rounded apex (Fig. 12 D); 6) legs with femora stout to almost spindle-shaped, tibiae without apical fringes, tarsal claws (Fig. 14 M) with one basal tooth.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025449257FDC0EEADFE4EFD58.taxon	discussion	Similar genera Leptelmis is closely related to Stenelmis, sharing the lack of cleaning fringe on the inner margin of the protibia and a similar body shape. However, it is distinguished by a pronotum constricted by a complete transverse impression in the apical half, the absence of a median groove, and longer legs. Larva First fully described and illustrated from Japan by Hayashi & Yoshitomi (2014).	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025449257FDC0EEADFE4EFD58.taxon	distribution	Distribution Widespread in Côte d’Ivoire, Democratic Republic of the Congo, Gabon, Ghana, Republic of the Congo, South Africa. New country records for Kenya, Sierra Leone, Angola, Ethiopia, Nigeria, Togo, Uganda and Zambia. Occurs also in the Indomalayan and Palaearctic regions.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025459257FDF2E8F9FACBFC4F.taxon	materials_examined	Material examined CÔTE D’IVOIRE • 1 ♂; “ ♂ // HOLOTYPUS // COLL. MUS. TERVUREN Côte d’Ivoire: Divo V. 1964 J. Decelle // Holotype // Prépar. genit. N ˚ 84654 // J. Delève det., 1965 Leptelmis amoena n. sp ”; MRAC.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025459257FDFEE9E5FCE9FB3D.taxon	materials_examined	Material examined DEMOCRATIC REPUBLIC OF THE CONGO • 5 ex.; “ SANZULU 4 - 4 - 26 A. COLLART // PARATYPE // J. Delève det., 1937 Leptelmis Collarti n. sp. // H. E. Hinton collection. B. M. 1977 - 566. ”; BMNH • 1 ex.; “ TYPE // SANZULU 4 - 4 - 26 A. COLLART // J. Delève det., 1937 Leptelmis Collarti n. sp. // I. R. Sc. N. B. I. G. 25.041 Coll. & det. J. Delève ”; IRSNB.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025459257FDF8EF1AFAEEFA20.taxon	materials_examined	Material examined DEMOCRATIC REPUBLIC OF THE CONGO • 1 ex.; “ TYPE // KAI Baku [Punctured] - VII- 26 A. COLLART // J. Delève det., 1942 L. costulatus n. sp. Type // I. R. Sc. N. B. I. G. 25.041 Coll. & det. J. Delève ”; IRSNB.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025459257FDF5EC06FE1AF933.taxon	materials_examined	Material examined SOUTH AFRICA • 1 ♂; “ ♂ // Para- type // Waal-River-System Stn; V. D. 21. 1075 L 22.3.60 N. I. W. R. // Prépar, genit N ˚ 111263.4 // J. Delève det., 1964 L. fragilis n. sp. // I. R. Sc. N. B. I. G. 25.041 Coll. & det. J. Delève ”; IRSNB.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025459257FDCDED10FC9AF805.taxon	materials_examined	Material examined DEMOCRATIC REPUBLIC OF THE CONGO • 1 ♂; “ ♂ // HOLOTYPUS // COLL. MUS. CONGO Elisabethville (lumière) XI. 1951 – II. 1952 Ch. Seydel // Holotype // Prépar. genit. N ˚ 12864.2 // J. Delève det., 1964 Leptelmis major n. sp. ”; MRAC.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230254A9258FDEFEB0AFACBFE50.taxon	materials_examined	Material examined DEMOCRATIC REPUBLIC OF THE CONGO • 1 ♀; “ TYPE // FARADJE: 8 ESENGE 19. III. 30 A. COLLART // Riv. Dola Sur ” moule „ // J. Delève det., 1942 Lept. d’Orchymonti n. sp. Type ”; IRSNB.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230254A9258FDCAEBF1FC96FD22.taxon	materials_examined	Material examined DEMOCRATIC REPUBLIC OF THE CONGO • 1 ♂; “ ♂ // HOLOTYPUS // COLL. MUS. CONGO Elisabethville (à la lumière) 1 - III- 52 / 30 - IX. 1953 Ch. Seydel // Holotype // Prépar. genit. N ˚ 12864.1 // J. Delève det., 1964 Leptelmis seydeli n. sp ”; MRAC.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230254A9258FDF7E900FB33FC35.taxon	materials_examined	Material examined GHANA • 1 ♂; “ ♂ // Para- type // GHANA: Northern region Banda-nkwanta 150 m, N 8 22 – W 2 08 Dr. S. ENDRODY-YOUNGA // Nr. 88 light trap 1 - 6. X. 1965 // Prépar. genit. N ˚ 211172.2 // J. Delève det., 1972 Lept. sobrina n. sp. // I. R. Sc. N. B. I. G. 25.041 Coll. & det. J. Delève ”; IRSNB.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230254B9259FDF3EB93FC06F920.taxon	description	Figs 2 E, 5 E, 8 F, 12 E, 14 N, 15 A	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230254B9259FDF3EB93FC06F920.taxon	type_taxon	Type species Lobelmis cucullata Fairmaire, 1898.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230254B9259FDF3EB93FC06F920.taxon	diagnosis	Differential diagnosis Lobelmis is characterized by the combination of the following characters: 1) body (Figs 2 E, 8 F) elongate; 2) antennae filiform; segments 7 and 9 enlarged; segment 11 longest (Fig. 15 A); 3) surface of the pronotum (Figs 2 E, 5 E, 8 F) alutaceous to smooth, micropunctured; anterolateral angles moderately produced; sides broadly arcuate; sublateral carinae short, reaching to basal 1 / 3; median groove absent; 4) surface of the elytra (Figs 2 E, 8 F) moderately smooth; sides subparallel in basal 2 / 3, then tapered into rounded apex; carinae absent; intervals nearly flat; 5) prosternum moderately short in front of procoxae; anterior margin laterally slightly lowered and indented; prosternal process moderately narrow with arrow-head apex (Fig. 12 E); 6) legs with femora stout, tarsal claws (Fig. 14 N) simple.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230254B9259FDF3EB93FC06F920.taxon	discussion	Remarks Characterized by the enlargement of the 7 th and 9 th antennomeres, Lobelmis is a unique genus and seemingly the only genus in Elminae to show enlargement on any of the 3 rd to 10 th antennomeres. Similar genera Lobelmis has a broad body shape, wide pronotum, and simple tarsal claws, placing it close to Pseudelmidolia. However, it differs from Pseudelmidolia by its modified 7 th and 9 th segments of antennae, and its shorter prosternum. Larva Unknown.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230254B9259FDF3EB93FC06F920.taxon	distribution	Distribution Known from Madagascar, Tanzania, Zimbabwe.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230254B9259FDFEECEFFB0FF858.taxon	description	Fig. 12 E	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230254B9259FDFEECEFFB0FF858.taxon	materials_examined	Material examined ZIMBABWE • 3 ex.; “ Csval 839 K // Bull. Sten. 11. 11. 59 // J. Delève det., 1964 Lob. Harrisoni n. sp // Para- type // H. E. Hinton collection. B. M. 1977 - 566. ”; illustrated in Fig. 12 E; BMNH.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
038562302548925AFDE0EB0AFD41FE50.taxon	materials_examined	Material examined MADAGASCAR • 1 ex.; “ Co- type // Madagascar (Sud) Fort-Dauphin Alluaud 1900 11 reverse: 1910. 220 // Helmidolia odiosa. Coty. Grouv ”; BMNH.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
038562302548925AFDEDEBDFFCDAFD37.taxon	description	Figs 2 E, 5 E, 8 F, 14 N, 15 A	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
038562302548925AFDEDEBDFFCDAFD37.taxon	materials_examined	Material examined TANZANIA • 1 ♂, 1 ♀; “ Co- type // AFRIQUE Orle ALLEMANDE // KILIMANDJARO (ZONE DES CULTURES) CH. ALLUAUD 1 - IV 1904 // Grouvelle Coll. 1908 - 170 // Lobelmis subnigra Coty. Grouv ”; illustrated in Figs 2 E, 5 E, 8 F, 14 N, 15 A; BMNH.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
038562302548925BFDC7E8FAFD30FD07.taxon	description	Fig. 16	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
038562302548925BFDC7E8FAFD30FD07.taxon	type_taxon	Type species Ludyella corticariiformis Reitter, 1899.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
038562302548925BFDC7E8FAFD30FD07.taxon	diagnosis	Differential diagnosis Ludyella is characterized by the combination of the following characters: 1) body (Fig. 16 A – D) elongate; 2) surface of the pronotum (Fig. 16 A – D) alutaceous; anterolateral angles moderately produced; sides moderately arcuate; sublateral carinae feeble, reaching to ca basal 1 / 4; median longitudinal groove thin and shallow; 3) surface of the elytra (Fig. 16 A – D) alutaceous; sides subparallel in basal 2 / 3, then tapered into rounded apex; granulate sublateral carina on 6 th interval; intervals nearly flat; 4) prosternum long in front of procoxae; anterior margin laterally lowered and indented; prosternal process moderately wide with arrow-head apex (Fig. 16 B); 5) legs with femora stout, tarsal claws (Fig. 16 C) simple.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
038562302548925BFDC7E8FAFD30FD07.taxon	discussion	Remarks Antennae are missing in holotype. Characters are based on photographs of the holotype and redescription by Jäch (1983). The genus was erected for a single male specimen of Lud. corticariiformis from an unknown locality. Similar genera Ludyella closely resembles the genus Helminthopsis or its subgenus Elmidoliana, and it may even be synonymous with them. The only apparent difference is its longer prosternum; however, this feature has been examined in only a limited number of specimens from the latter two taxa. Jäch (1983) hypothesized a close relationship with Lathridelmis, as both genera share a similar pronotal structure, a granulate sublateral carina on the 6 th interval, small body size, and a crenulate pronotal margin. Although they differ in elytral width, this variation could be explained by the loss of wings in one taxon and their retention in the other. The name Lathridelmis reflects its resemblance to the family Latridiidae, and the type species of Ludyella, Lud. corticariiformis, is likewise named for its likeness to the genus Corticaria from the same family. Both Ludyella and Lathridelmis have neatly arcuate pronotal sides, narrowed both apically and basally, creating a subglobular outline reminiscent of Corticaria. However, this and the other characters mentioned above fall well within the broad variability of Helminthopsis, and a proper revision of that genus is necessary to clarify the enigmatic position of Ludyella. The most striking difference between Lathridelmis and Helminthopsis is the thick, rugose layer of plastron tomentum covering almost the entire body in the former. Although the type specimen of Lud. corticariiformis is not in the best condition, its cuticle appears closer to alutaceous than to that of Lathridelmis, and it seems to have yellow markings on the elytra - at least on the humeri - which is consistent with species of Elmidoliana. Larva Unknown.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
038562302548925BFDC7E8FAFD30FD07.taxon	distribution	Distribution Unknown, arguably Afrotropical.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
038562302549925BFD98E90BFE3FFC19.taxon	description	Fig. 16	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
038562302549925BFD98E90BFE3FFC19.taxon	materials_examined	Material examined UNKNOWN COUNTRY • 1 ♂; “ Spanien? // 33 // Ludy. n. g. // {unreadable texts} // Monotypus 1899 Ludyella corticariiformis Reitter // Coll. Reitter // Ludyella corticarifor mis m. 1899. ”; illustrated in Fig. 16; HNMH.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
038562302549925CFE45EE25FCCFFA87.taxon	description	Figs 2 F, 5 F, 8 G, 12 F, 14 O, 15 B, 18 A	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
038562302549925CFE45EE25FCCFFA87.taxon	type_taxon	Type species Microdinodes quadrifasciatus Grouvelle, 1906.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
038562302549925CFE45EE25FCCFFA87.taxon	diagnosis	Differential diagnosis Microdinodes is characterized by the combination of the following characters: 1) body (Figs 2 F, 8 G) elongate; 2) antennae with segments 3 – 10 filiform; segment 11 longer (Fig. 15 B); 3) surface of the pronotum (Figs 2 F, 5 F, 8 G) alutaceous to moderately smooth; anterolateral angles moderately produced; sides arcuate; sublateral carinae indistinct to distinct, reaching behind basal half; prescutellar carinae indistinct to distinct, reaching to basal 1 / 4; median groove indistinct to prominent; 4) surface of the elytra (Figs 2 F, 8 G) slightly coarse to moderately smooth; sides subparallel in basal 2 / 3, then tapered into rounded apex; granulate carinae absent to present in various combinations of 2 nd to 8 th intervals; intervals usually nearly flat; 5) prosternum moderately long in front of procoxae; anterior margin laterally lowered and indented; prosternal process moderately wide with rounded apex (Fig. 12 F); 6) legs with spindle-shaped femora, tarsal claws (Fig. 14 O) with one to two basal teeth; 7) ovipositor with long and moderately narrow coxites (Fig. 18 A).	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
038562302549925CFE45EE25FCCFFA87.taxon	discussion	Remarks The considerable variability within this genus suggests potential polyphyly, a notion supported by Delève (1965 b), who proposed more than ten groups based primarily on male genitalia. Clear distinctions in the presence of sublateral and prescutellar carinae on the pronotum, along with the pronotal median groove and granulate carinae on the elytra, highlight the need for a thorough generic revision to clearly define the boundaries of this taxon. Similar genera Species of Microdinodes are characterized by spindle-shaped femora, a similar overall body form, and tarsal claws bearing at least one basal tooth. Although Eumicrodinodes also has spindle-shaped femora, it can be distinguished from Microdinodes by its distinctly wide prosternal process. Microdinodes shares some features with Exolimnius, but the latter can be reliably separated by its stouter femora and a longer prosternum. Delève (1965 b) noted a close relationship between Microdinodes, Aspidelmis, and Pseudelmidolia, all of which share a similar pronotal sculpture, a comparable prosternal process, and thickened antennae. However, the latter two genera possess only simple tarsal claws, whereas Microdinodes has one or two basal teeth. Larva First described and illustrated as Helmiinae by Bertrand (1935), who later redescribed it (Bertrand 1962).	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
038562302549925CFE45EE25FCCFFA87.taxon	distribution	Distribution Widespread in Angola, Cameroon, Democratic Republic of the Congo, Ethiopia, Gabon, Ghana, Guinea, Kenya, Liberia, Mozambique, Republic of the Congo, Rwanda, South Africa, Tanzania, Uganda, Zambia. New country records for Central African Republic, Côte d’Ivoire and Togo.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230254E925CFDEBEF9DFB81F91B.taxon	materials_examined	Material examined ZAMBIA • 1 ♂; “ ♂ // Type // Holotype // N. RHODESIA: Mwinilunga District Ikelenge, nr. Kalene Zambezi Rapids // E. Pinhey 3. v. 1963. M. V. Light trap. B. M. 1963 - 742 // See slide Coll. No. // Prépar. Genit. N ° 6464.2 // J. Delève det., 1964 Microdinodes balfouri n. sp. ”; BMNH • 8 ♂♂; “ ♂ // Para- type // N. RHODESIA: Mwinilunga District Ikelenge, nr. Kalene Zambezi Rapids // E. Pinhey 3. v. 1963. M. V. Light trap. B. M. 1963 - 742 // J. Delève det., 1964 M. balfouri n. sp. ”; BMNH • 13 ♀♀; “ ♀ // Para- type // N. RHODESIA: Mwinilunga District Ikelenge, nr. Kalene Zambezi Rapids // E. Pinhey 3. v. 1963. M. V. Light trap. B. M. 1963 - 742 // J. Delève det., 1964 M. balfouri n. sp. ”; BMNH.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230254E925CFD88ED38FACBF80E.taxon	materials_examined	Material examined DEMOCRATIC REPUBLIC OF THE CONGO • 1 ♂; “ TYPE // SANZULU 4 - IV- 26 A. COLLART // ♂ // J. Delève det., 1943 M. bimaculatus n. sp. ♂ Type. // I. R. Sc. N. B. I. G. 25.041 Coll. & det. J. Delève ”; IRSNB.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230254F925DFD83EB0AFB18FCA0.taxon	materials_examined	Material examined CÔTE D’IVOIRE • 5 ex.; “ IVORY COAST, 174 m, Taï NP. Taï Research Station, 05 ° 49 ′ 59.8 ″ N, 07 ° 20 ′ 32.0 ″ W, 14 – 23. XI. 2015, // Edwards Trap, Aristophanous, M., Moretto, P., Ruzzier, E., leg., BMNH (E) 2015 – 177 ”; BMNH. LIBERIA • 2 ex.; “ LIBERIA Suakoko X II- 19 - 51 // 6 - 9 pm light trap Blickenstaff // BM. 1979 - 136 // PARATYPE // J. Delève det., 1976 M. blickenstaffi n. sp. ”; BMNH • 1 ♀; “ ♀ // LIBERIA Suakoko X II- 19 - 51 // 6 - 9 pm light trap Blickenstaff // BM. 1979 - 136 // PARATYPE ”; BMNH • 1 ex.; “ Suakoko, Liberia II - 26 - 52 // C C Blickenstaff // BM. 1979 - 136 // PARATYPE ”; BMNH • 50 ex.; “ LIBERIA 140 m Krahn-Bassa Reserve, 7.5 km SW Pellokon Town, Juboe River, Sinoe County, 5 ° 39 ′ 4 ″ N; 8 ° 39 ′ 4 ″ W // 14 – 20. i. 2018 MV Light trap (125 W). Geiser, M., Sáfián, Sz., & Simonics, G., leg. ANHRT 28, LR – 001, BMNH (E) 2018 – 39 ”; BMNH • 1 ex.; “ LIBERIA, 230 m, Zuwulor Village School, Lofa county, 7 ° 54 ′ 52 ″ N, 9 ° 31 ′ 08 ″ W, 8. xi. 2017, // Light trap (blended bulb 250 W), Aristophanous, M., Sáfián, Sz., Simonics, G., & Smith, L., leg., ANHRT 28, LR – 001, BMNH (E) 2018 – 39 ”; BMNH.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230254F925DFDB6E98BFE4AFB80.taxon	materials_examined	Material examined CAMEROON • 1 ♂; “ ♂ // Para- type // Cameroun – 1949 - 50 13 | 12 – 222 Lok. R. F. Nyong. loc. 174 J. B. - S. J. D. // 13862.4 // J. Delève det., 1962 Micr. camerunensis n. sp. // I. R. Sc. N. B. I. G. 25.041 Coll. & det. J. Delève ”; IRSNB.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230254F925DFDF9EEABFE1AFA60.taxon	materials_examined	Material examined CAMEROON • 1 ♂; “ ♂ // Para- type // Cameroun – 1949 - 50 13 | 12 – 222 Lok. R. F. Nyong. loc. 174 J. B. - S. J. D. // 3862.4 // J. Delève det., 1962 Micr. dahli n. sp. // I. R. Sc. N. B. I. G. 25.041 Coll. & det. J. Delève ”; IRSNB.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230254F925DFD9BEFCBFE64F92F.taxon	materials_examined	Material examined KENYA • 1 ♂; “ ♂ // KENYA Camp l de l’Elgon M’ ELGON, VERS’ EST 2.100 m. // MUSÉUM DE PARIS Mission de l’Omo C. ARAMBOURG P. - A. CHAPPUIS & R. JEANNEL 1932 - 1933 // Prépar. genit. N ° 271063.3 // J. Delève det., 1938 Microdinodes difficilis Gr. // I. R. Sc. N. B. I. G. 25.041 Coll. & det. J. Delève ”; IRSNB.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230254F925DFD9CED0EFC00F80E.taxon	materials_examined	Material examined DEMOCRATIC REPUBLIC OF THE CONGO • 1 ♂; “ ♂ // HOLOTYPUS // I. R. S. A. C. - MUS. CONGO Kivu: T. Kalehe, Bitale, riv. Tshibaya 2.000 m 30 - III- 1950 // TYPE // Prépar. genit N ° 191163.4 // J. Delève det., 1964 Microdinodes discedens n. sp Type ”; MRAC.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230254C925EFDE8EB0AFEA7FE3F.taxon	materials_examined	Material examined ANGOLA • 1 ♂; “ ♂ // Para- type // Angola // Mucologe (r) 9. VII. 57 A. 21 H. Bertrand // Prépar. genit N ° 251163.2 // J. Delève det., 1963 Micr. elegans n. sp. // I. R. Sc. N. B. I. G. 25.041 Coll. & det. J. Delève ”; IRSNB.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230254C925EFD8EE80DFACBFD06.taxon	materials_examined	Material examined DEMOCRATIC REPUBLIC OF THE CONGO • 1 ♂; “ ♂ // HOLOTYPUS // Congo belge, P. N. G. Miss. H. De Saeger I / a / 1, 1 - v- 1950 Réc. G. Demoulin. 471 // COLL. MUS. CONGO. (ex coll. I. P. N. C. B.) // TYPE TY // Prép. 151062 / 3 // J. Delève det., 162 Microdinodes garambanus n. sp. Type ”; MRAC.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230254C925EFD9AE91CFE19FC09.taxon	materials_examined	Material examined GUINEA • 1 ♀; “ ♀ // Para- type // Guinee Chute du Tinkisso 26. II. 1957 // H. Bertrand // Prépar. genit N ˚ 28164.1 // J. Delève det., 1964 Microd. Guineensis n. sp // I. R. Sc. N. B. I. G. 25.041 Coll. & det. J. Delève ”; IRSNB.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230254C925EFD82EE2EFB2BFB3C.taxon	materials_examined	Material examined DEMOCRATIC REPUBLIC OF THE CONGO • 1 ♂; “ ♂ // TYPE // Kinchassa 28.5.97 Waelbroeck // Helmis illustris Ty. Grouv // Déterm. Grouvelle // Prépar. genit N ° 17164.1 ”; IRSNB.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230254C925EFD99EF1AFCA8FA0F.taxon	materials_examined	Material examined DEMOCRATIC REPUBLIC OF THE CONGO • 1 ♂; “ ♂ // HOLOTYPUS // I. R. S. A. C. - MUS. CONGO Kivu: Uvira, riv Mugadja 25. XI. 1949 G. Marlier // TYPE // Prépar. genit. N ° 191163.7 // J. Delève det., 1963 Microdinodes imagineus n. sp Type ”; MRAC.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230254C925EFD95EC24FAB1F911.taxon	materials_examined	Material examined DEMOCRATIC REPUBLIC OF THE CONGO • 1 ♂; “ ♂ // HOLOTYPUS // I. R. S. A. C. - MUS. CONGO Kivu: Terr. Kalehe, Bitale Bunyakiri, Affl. Tshingan- da, russ. Asulu, 1200 m. G. Marlier III- 1950 // TYPE // Prépar. genit N ° 191163.5 // J. Delève det., 1963 Microdinodes insolitus n. sp. Type ”; MRAC.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230254C925FFDEBED37FD33FEA0.taxon	materials_examined	Material examined KENYA • 1 ♂; “ ♂ // PARATYPE // KENYA Camp l de l’Elgon M’ ELGON, VERS’ EST 2.100 m. // MUSÉUM DE PARIS Mission de l’Omo C. ARAMBOURG P. - A. CHAPPUIS & R. JEANNEL 1932 - 1933 // Prépar. genit N ° 271063.1 // J. Delève det., 1938 Microdinodes jeanneli n. sp. ♂ // I. R. Sc. N. B. I. G. 25.041 Coll. & det. J. Delève ”; IRSNB.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230254D925FFDE3EB87FBD1FDBC.taxon	materials_examined	Material examined DEMOCRATIC REPUBLIC OF THE CONGO • 1 ♂; “ ♂ // HOLOTYPUS // Dans humus en forêt // I. R. S. A. C. - MUS. CONGO Kivu: Terr. Kabare, Lwiro 2000 / 2200 m. IX- 1953 N. Leleup // Prépar. genit. N ° 191163.8 // TYPE // J. Delève det., 1963 Microdinodes leleupi n. sp ”; MRAC.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230254D925FFD95E89BFE60FC8B.taxon	materials_examined	Material examined DEMOCRATIC REPUBLIC OF THE CONGO • 1 ♀; “ ♀ // I. R. S. A. C. - MUS. CONGO Kivu: riv. Natulonge, terr. Rizi I- 1957 N. Leleup // Prépar. genit N ° 16164.15 // J. Delève det., 970 Microdinodes lituratus Dlve ”; MRAC.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230254D925FFDEBE9AEFBE3FB67.taxon	materials_examined	Material examined DEMOCRATIC REPUBLIC OF THE CONGO • 1 ♂; “ ♂ // HOLOTYPUS // I. R. S. A. C. - MUS. CONGO Kivu: R. Nyabarongo, 56 km. Cost, 1600 m. 16 - XII- 1950 G. Marlier // TYPE // Prépar. genit N ° 261062.3 // J. Delève det., 1963 Microdinodes marlieri n. sp. Type ”; MRAC.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230254D925FFDB8EEC2FD1FF9F8.taxon	materials_examined	Material examined DEMOCRATIC REPUBLIC OF THE CONGO • 1 ♀; “ ♀ // Para- type // Tshuapa: Terr. Ikela riv. Lukendo, IX. 1959 B. 103 N. Leleup // Humus en forêt marecageuse // J. Delève det., 1964 Microd. Multimaculatus n. sp. // I. R. Sc. N. B. I. G. 25.041 Coll. & det. J. Delève ”; IRSNB. ZAMBIA • 1 ex.; “ ZAMBIA, 1400 m, Hillwood, Ikelenge 11 ° 16 ′ 02 ″ S, 24 ° 18 ′ 59 ″ E 30. x – 3. xi. 2017. Actinic Light Trap. // Carter, M., Lloyd, A., Miles, W., Oram, D., Smith, R. leg. ANHRT: 2017: 27, ZM – 011 BMNH (E) 2017 – 194 ”; BMNH.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230254D9260FD8BEC44FB57FD66.taxon	description	Fig. 18 A	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230254D9260FD8BEC44FB57FD66.taxon	materials_examined	Material examined ANGOLA • 4 ex.; “ at light // ANGOLA (A 26) Salazar, I. I. A. A. 9 ‒ 15. iii. 1972 // Southern African Exp. B. M. 1972 – 1 ”; BMNH. CAMEROON • 1 ex.; “ CAMEROON N-W prov. Wum VILL. env., UV light 6 ° 23 ′ 10 ″ N, 10 ° 04 ′ 59 ″ E 10. xii. 2010 local collector BMNH (E) 2016 – 44 // NHMUK 014377678 ”; BMNH. DEMOCRATIC REPUBLIC OF THE CONGO • 4 ex.; “ MADUDA 1 - 25 A. COLLART // PARATYPE // J. Delève det., 1937 Microd. nigrolineatus n. sp. // H. E. Hinton collection. B. M. 1977 - 566. ”; BMNH • 1 ex.; “ MADUDA 1 - 25 A. COLLART // PARATYPE // J. Delève det., 1937 M. nigrolineatus n. sp. // H. E. Hinton collection. B. M. 1977 - 566. ”; BMNH • 12 ex.; “ Coll. Mus. Tervuren Mayumbe: Kai-Mbaku (á la lampe) 3. V. 1970 P. M. Elsen ”; MRAC. SIERRA LEONE • 21 ex.; “ Sierra Leone, 80 m, Kalainkay nr. Kamabai Northern Prov. 3 – 6. xi. 15; N 09 ° 10 ′ 52 ″; W 11 ° 56 ′ 44 ″ Light Trap, R. Goff coll. Leg. Smith. R & Takano. H, BMNH (E) 2016 – 197 ”; BMNH. TOGO • 18 ex.; “ TOGO 415 m Fazao-Malfakassa NP Point de vue campsite Sudanian savannah 8 ° 48 ′ 50 ″ N, 0 ° 49 ′ 3.2 ″ E 16 – 23. viii. 2018. // MV light trap Aristophanous, M., Geiser, M., Moretto, P., Sanbena, B. leg. ANHRT: 2018. 31, BMNH (E) 2018 – 148 ”; illustrated in Fig. 18 A; BMNH.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025729260FD91E8C3FCFAFC7F.taxon	materials_examined	Material examined DEMOCRATIC REPUBLIC OF THE CONGO • 1 ♂; “ ♂ // HOLOTYPE // MUS. ROY. AFR. CENTR. Kivu: ruisseau Mihomba 24 - I. 1960 (R. Kiss) // TYPE // Prépar. genit. N ° 16164.9 // 129 f // J. Delève det., 1964 Microdinodes obscurus n. sp. Type ”; MRAC.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025729260FD8CE9D8FB57FB57.taxon	materials_examined	Material examined REPUBLIC OF THE CONGO • 1 ♂; “ ♂ // Para- type // BRAZZAVILLE CONGO II- 1964 // MUSÉUM PARIS MISSION A. DESCARPENTRIES ET A. VILLIERS 1963 - 1964 // J. Delève det., 1965 Microdinodes octoguttatus n. sp. // I. R. Sc. N. B. I. G. 25.041 Coll. & det. J. Delève ”; IRSNB.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025729260FD9AEEF0FCE9FA41.taxon	materials_examined	Material examined SOUTH AFRICA • 1 ♂; “ ♂ // 1061 g // J. Delève det., 1964 Micr. pilistriatus n. sp // Para- type // I. R. Sc. N. B. I. G. 25.041 Coll. & det. J. Delève ”; IRSNB.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025729260FDA9EFD3FD8AF936.taxon	description	Figs 2 F, 5 F, 8 G, 12 F, 14 O, 15 B	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025729260FDA9EFD3FD8AF936.taxon	materials_examined	Material examined TANZANIA • 1 ex.; “ SYN- TYPE // AFRIQUE ORLE ALLEMANDE KILIMANDJARO (ZONE DES CULTURES) CH. ALLUAUD I-IV 1904 // microdinodes 4. fasciatus coty. Grouv ”; illustrated in Figs 2 F, 5 F, 8 G, 12 F, 14 O, 15 B; BMNH.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025729260FDEBED13FCF7F80E.taxon	materials_examined	Material examined DEMOCRATIC REPUBLIC OF THE CONGO • 1 ♂; “ ♂ // HOLOTYPUS // I. R. S. A. C. - MUS. CONGO Kivu: Riv. Luvimvi, près Nyakasiba G. Marlier 25 - VII- 1955 // TYPE // Prépar. genit N ° 231163.2 // J. Delève det., 1964 Type Micr. sexualis n. sp. ”; MRAC.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025739261FDE1EB0AFB9CFE20.taxon	materials_examined	Material examined DEMOCRATIC REPUBLIC OF THE CONGO • 1 ex.; “ Samba 2.12.23 // Para- type // J. Delève det., 1937 M. similis n. sp. // H. E. Hinton collection. B. M. 1977 - 566. ”; BMNH.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025739261FD86E809FAA4FBD7.taxon	materials_examined	Material examined CÔTE D’IVOIRE • 1 ex.; “ IVORY COAST, 174 m, Taï NP. Taï Research Station, 05 ° 49 ′ 59.8 ″ N, 07 ° 20 ′ 32.0 ″ W, 14 – 23. XI. 2015, // Edwards Trap, Aristophanous, M., Moretto, P., Ruzzier, E., leg., BMNH (E) 2015 – 177 ”; BMNH. MOZAMBIQUE • 6 ex.; “ MOZ: SOFALA, Chitengo campsite, P. N. G., 18 ° 58 ′ 34 ″ S 34 ° 20 ′ 59 ″ E, 40 m, 1 - 3. V. 2017 F. & J. Génier, open savanna clay soil, ex light trap, 2017 - 35 ”; CMN. NIGERIA • 1 ex.; “ COLL. MUS, TERVUREN Nigeria: Zaria á la lampe 1969 Dr H. Roberts ”; MRAC. ZAMBIA • 62 ex.; “ ZAMBIA 350 m Luangwa, Redcliff Zambezi Lodge (Mopane Woodland) 15 ° 38 ′ 34.2 ″ S, 30 ° 16 ′ 32.9 ″ E 11 - 17. iii. 2019 // Lepiled Light Trap. Derozier, V., Imakando, M., Miles, W., Mulvaney, L. Leg ANHRT: 2019.5, BMNH (E) 2020 - 19 ”; BMNH, MRAC, IRSNB, NMW.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025739261FDEEEE74FE64FAB0.taxon	materials_examined	Material examined DEMOCRATIC REPUBLIC OF THE CONGO • 1 ♂; “ ♂ // TYPE // MADUDA 4 - VI- 26 A. COLLART // Prépar. genit N ˚ 271063.6 // J. Delève det., 1943 Micr. tarsalis n. sp. // I. R. Sc. N. B. I. G. 25.041 Coll. & det. J. Delève ”; IRSNB.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025739261FDE3EF9EFB0CF99A.taxon	materials_examined	Material examined DEMOCRATIC REPUBLIC OF THE CONGO • 1 ♂; “ ♂ // M. TYPE ♂ tibialis // MUSÉE DU CONGO Stanleyville a Kilo L. Burgeon // R. DĖT B 1402 // R. DĖT E 3463 // Microdinodes tibialis nov. sp. // Prépar. genit N ˚ 16164.4 // J. Delève det., 1938 Microdinodes tibialis n. sp. ♂ ”; MRAC.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025739261FDE0ECC3FD67F80F.taxon	materials_examined	Material examined ETHIOPIA • 1 ♂; “ Type // Abyssinia: Small stream, Djem-Djem Forest. 8,000 ft. - 10. x. 1926. J. Omer Cooper. // Microdinodes troilus Hinton Type ”; BMNH • 1 ♀; “ ♀ // Para- type // Abyssinia: Small stream, Djem-Djem Forest. 8,000 ft. - 10. x. 1926. J. Omer Cooper. // Microdinodes troilus Hinton P-type ”; BMNH • 1 ex.; “ Para- type // Abyssinia: Small stream, Djem-Djem Forest. x. 1926. J. Omer-Cooper. // Microdinodes troilus Hinton P-type ”; BMNH.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025709262FD97EB0AFBD2FE04.taxon	materials_examined	Material examined DEMOCRATIC REPUBLIC OF THE CONGO • 1 ♂; “ ♂ // HOLOTYPUS // Dans humus en forêt // I. R. S. A. C. - MUS. CONGO Kivu: Terr. Masisi, 800 m, Mutakato IX- 1953 N. Leleup // TYPE // Prépar. genit. N ° 231163.10 // J. Delève det., 1964 Microd. Type venustus n. sp ”; MRAC.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025709262FDEFE821FACBFD1B.taxon	materials_examined	Material examined DEMOCRATIC REPUBLIC OF THE CONGO • 1 ♂; “ ♂ // Para- type // ODZALA CONGO OCTOBRE // MUSÉUM PARIS MISSION A. DESCARPENTRIES ET A. VILLIERS 1963 - 1964 // Prépar. genit. N ° 13265.12 // J. Delève det., 1965 Micr. villiersi n. sp. // I. R. Sc. N. B. I. G. 25.041 Coll. & det. J. Delève ”; IRSNB.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025709263FDB7EE22FDC3FE21.taxon	description	Figs 2 G, 5 G, 8 H, 12 G, 14 P, 18 B	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025709263FDB7EE22FDC3FE21.taxon	type_taxon	Type species Microdinodes vaalensis Delève, 1965.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025709263FDB7EE22FDC3FE21.taxon	diagnosis	Differential diagnosis Paramicrodinodes is characterized by the combination of the following characters: 1) body (Figs 2 G, 8 H) elongate; 2) antennae with segments 3 – 10 filiform; segment 11 longer; 3) surface of the pronotum (Figs 2 G, 5 G, 8 H) alutaceous to smooth; anterolateral angles moderately produced; sides arcuate; sublateral carinae indistinct; prescutellar carinae indistinct; median longitudinal groove moderately wide and deep; 4) surface of the elytra (Figs 2 G, 8 H) moderately smooth; sides subparallel in basal 2 / 3, then tapered into rounded apex; carinae absent; intervals nearly flat; 5) prosternum moderately short in front of procoxae; anterior margin laterally lowered and indented; prosternal process moderately wide with rounded apex (Fig. 12 G); 6) legs with spindle-shaped femora, tarsal claws (Fig. 14 P) with two basal teeth; 7) ovipositor with moderately short and wide coxites (Fig. 18 B).	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025709263FDB7EE22FDC3FE21.taxon	description	Similar genera The subgenus differs from Microdinodes s. add space (see EJT list of abbreviations) s. str. by a reduced ovipositor, with shorter and broader coxites, similar to Pseudelmidolia and reminiscent of most genera of Larainae. Otherwise, it falls within the great variability observed within the genus. Larva Unknown.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025709263FDB7EE22FDC3FE21.taxon	distribution	Distribution So far known from Madagascar, South Africa. New country records for Kenya, Tanzania and Zambia.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025719263FE16EBECFAA7FBFD.taxon	description	Figs 2 G, 5 G, 8 H, 12 G, 14 P, 18 B	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025719263FE16EBECFAA7FBFD.taxon	materials_examined	Material examined KENYA • 1 ex.; “ KENYA, TSAWO West National Park, near Kitani Lodge // Hung. Sci. Africa. Exp. “ Teleki ” 14. IV. 1988. No. 265 leg. A. Vojnits ”; HNHM. SOUTH AFRICA • 1 ♀; “ Natal Bishmans R. 3. 2. 56 // Buo 28 R 7 // J. Delève det., 1965 Paramicrodinodes vaalensis Dlve ”; illustrated in Fig. 18 B; BMNH. TANZANIA • 1 ex.; “ Tanzania TZ 2014 S Ikwiri exv. Rufiji riv. 7.2. [E 038 ° 40.252 ′ S 07 ° 53.591 ′] Leg. L. Bureš ”; LMPC. ZAMBIA • 1 ♂; “ ZAMBIA 1300 m Nyangombe Falls Miombo / riverine forest mosaic 11 ° 48 ′ 25 ″ S, 24 ° 32 ′ 12 ″ E 15 - 17. xi. 2018. // Actinic light trap Aristophanous, M., Derozier, V., Laszlo, G., Oram, D. leg. ANHRT: 2018.40, BMNH (E) 2019 - 90 ”; illustrated in Figs 2 G, 5 G, 8 H, 12 G, 14 P; BMNH.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025719264FDE1EE41FC2BFBE8.taxon	description	Figs 2 H, 5 H, 9 A, 12 H, 14 Q	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025719264FDE1EE41FC2BFBE8.taxon	type_taxon	Type species Pachyelmis validipes Fairmaire, 1898.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025719264FDE1EE41FC2BFBE8.taxon	diagnosis	Differential diagnosis Pachyelmis is characterized by the combination of the following characters: 1) body (Figs 2 H, 9 A) compact, obovate; 2) antennae with segments 3 – 10 filiform; segment 11 longer; 3) surface of the pronotum (Figs 2 H, 5 H, 9 A) moderately smooth, lateraly granulose; lateral margin serrate; anterolateral angles feebly produced; sides broadly arcuate narrowing to prolonged anterior margin; sublateral carinae almost complete; prescutellar carinae absent; median groove absent; 4) surface of the elytra moderately smooth; sides broadly arcuate, widest in the middle, then tapered into rounded apex; granulate sublateral carinae on 5 th and 7 th intervals, 3 rd interval sometimes carinate at base or almost complete; intervals nearly flat to raised, partly diminished; sometimes with gibbosities (Figs 2 H, 9 A); 5) prosternum short in front of procoxae; anterior margin laterally lowered, without distinct indentation; prosternal process markedly wide, sides subparallel at base, apically widened into broadly rounded apex with wide medial projection (Fig. 12 H); 6) legs with femora stout, tarsal claws (Fig. 14 Q) simple.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025719264FDE1EE41FC2BFBE8.taxon	description	Similar genera An obovate body and long sublateral carinae on the pronotum place Pachyelmis close to Helminthocharis and Sphragidelmis. It can be distinguished from Helminthocharis by its markedly broader prosternal process. In contrast to Sphragidelmis, it has longer sublateral carinae on the pronotum and lacks prescutellar, arcuately diverging carinae. Larva Described and illustrated by Bertrand (1962).	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025719264FDE1EE41FC2BFBE8.taxon	distribution	Distribution Widespread in Angola, Cameroon, Côte d’Ivoire, Democratic Republic of the Congo, Ghana, Kenya, Liberia, Madagascar, Republic of the Congo, Rwanda, South Africa, Tanzania, Uganda, Zimbabwe. New country records for Sierra Leone, Togo and Zambia.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025769264FDE4EE4DFBE0FACE.taxon	materials_examined	Material examined REPUBLIC OF THE CONGO • 1 ex.; “ Soil-Zoological Exp. Congo-Brazzaville Lefinte reservation bungalow near Mpo // 6.1.1964. No 589 by lamplight leg. Endródy-Younga // J. Delève det., 1966 Pach. aequata n. sp. // Paratypus // H. E. Hinton collection. B. M. 1977 - 566. ”; BMNH.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025769264FD91EF6BFB45F9F8.taxon	materials_examined	Material examined RWANDA • 1 ex.; “ HOLOTYPUS // COLL. MUS. CONGO Ruanda: Rutovu, for du Rugege, 2350 m, P. Basilewsky 20 / 23 - I- 53 // J. Delève det., 1955 Pachyelmis Basilewskyi n. sp. Type ”; MRAC.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025769264FD92EC62FADCF80F.taxon	materials_examined	Material examined LIBERIA • 2 ex.; “ Suakoko, Liberia II - 26 - 52 // C C Blickenstaff // BM. 1979 - 136 // PARATYPE Pachyelmis bigibbulosa Deleve ”; BMNH • 4 ex.; “ LIBERIA Suakoko XII- 19 - 51 // 6 - 9 pm light trap Blickenstaff // BM. 1979 - 136 // PARATYPE Pachyelmis bigibbulosa Deleve ”; BMNH • 3 ex.; “ LIBERIA Suakoko 18 Nov 52 Blickenstaff // BM. 1979 - 136 // PARATYPE Pachyelmis bigibbulosa Deleve ”; BMNH • 1 ex.; “ LIBERIA Suakoko XII- 19 - 51 // 6 - 9 pm light trap Blickenstaff // BM. 1979 - 136 // PARATYPE Pachyelmis bigibbulosa Deleve ”; BMNH • 2 ex.; “ LIBERIA 140 m Krahn-Bassa Reserve, 7.5 km SW Pellokon Town, Juboe River, Sinoe County, 5 ° 39 ′ 4 ″ N; 8 ° 39 ′ 4 ″ W // 14 - 20. i. 2018 Edwards trap Geiser, M., Sáfián, Sz., & Simonics, G., leg. ANHRT 28, LR- 001, BMNH (E) 2018 - 39 ”; BMNH.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025779265FDFFEB0AFDB7FE0B.taxon	materials_examined	Material examined DEMOCRATIC REPUBLIC OF THE CONGO • 1 ex.; “ Singa Kondo (Mayumbe) 27. VI. 26 // Riv. Butani // J. Delève det., 1943 Pach. Gibba Grouv // Prépar. genit. N ° 2364.1 // J. Delève et., 1964 Pach. collarti n. sp. Type ”; IRSNB.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025779265FDB9E836FB6CFCDD.taxon	materials_examined	Material examined TANZANIA • 1 ♂; “ ♂ // HOLOTYPUS // COLL. MUS. CONGO Tanganyika Terr.: Bunduki Uluguru Mts., moy. Mgeta 1300 m. 30 - IV / 11 - V- 1957 // Mission Zoolog. I. R. S. A. C. en Afrique orientale (P. Basilewsky et N. Leleup) // E. Janssens det., 1959 Pachyelmis gibba Grouvelle // TYPE // Prépar. genit. N ° 26264.1 // J. Delève det., 1964 Pach. convexa Type janssensi subspn. ”; MRAC.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025779265FD9AE980FEC8FB6C.taxon	materials_examined	Material examined DEMOCRATIC REPUBLIC OF THE CONGO • 1 ♂; “ ♂ // TYPE P. distin- guenda // MUSÉE DU CONGO Kasai: Ngombe 16 - XI- 1921 Dr H. Schouteden // Pachyelmis distinguendus nov. sp. // R. DÉT S 1401 // R. DÉT Q 3463 // Prépar. genit. N ° 222642 // J. Delève det., 1938 Pach. distinguenda n. sp. Type ”; MRAC.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025779265FD94EED3FA85FA74.taxon	materials_examined	Material examined DEMOCRATIC REPUBLIC OF THE CONGO • 2 ex.; “ PARATYPE // MADUDA - 1 - 25 A. COLLART // J. Delève det., 1937 Pach. madudana n. sp. // H. E. Hinton collection. B. M. 1977 - 566. ”; BMNH.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025779265FDFDEFDBFB03F95B.taxon	materials_examined	Material examined DEMOCRATIC REPUBLIC OF THE CONGO • 1 ♀; “ ♀ // HOLOTYPE // TYPE P. manca // MUSÉE DU CONGO Kasai: Ngombe 16 - XI- 1921 Dr H. Schouteden // R. DÉT N 3463 // R. DÉT 1955 Q // Prépar. genit. N ° 222649 // J. Delève det., 1938 Pachyelmis manca n. sp. Type ”; MRAC.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025779265FDEAED06FCD6F80E.taxon	materials_examined	Material examined GHANA • 1 ♂; “ ♂ // Para- type // GHANA: Ashanti region Kwadaso 320 m, N 6 42 – W 1 39 Dr. S. ENDRODY-YOUNGA // Nr. 345 black light 5. V. 1969 // J. Delève det., 1972 Pachyelmis persimilis n. sp. // I. R. Sc. N. B. I. G. 25.041 Coll. & det. J. Delève ”; IRSNB.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025749266FD85EB0AFACBFE51.taxon	materials_examined	Material examined MADAGASCAR • 1 ♂; “ MADAGASCAR, 2007, Lakato env., near Andasibe-Mantadia N. P., M. Trýzna leg., 9. - 10. i. BMNH {E} 2010 - 29 // Pachyelmis regimbarti Grouvelle, 1906 ♂ K. Matsumoto det. 2019 ”; BMNH.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025749266FD8DEBF6FC21FD23.taxon	materials_examined	Material examined DEMOCRATIC REPUBLIC OF THE CONGO • 1 ♂; “ ♂ // HOLOTYPUS // COLL. MUS. CONGO Elisabethville (à la lumière) 1 - III- 52 / 30 - IX. 1953 Ch. Seydel // TYPE // Prépar. genit. N ˚ 41263.2 // J. Delève det., 1964 Pach. rufomarginata Type n. sp. ”; MRAC.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025749266FD97E900FCC1FC35.taxon	materials_examined	Material examined DEMOCRATIC REPUBLIC OF THE CONGO • 1 ♂; “ ♂ // HOLOTYPUS // Congo belge: P. N. U. Gorges de la Pelenge (1.150 m.) 28 - v- 1947 Mis. G. E. de Witter. 435 a // TYPE // Prépar. genit. N ° 3364.1 // J. Delève det., 1953 Pach. upembana n. sp Type ”; MRAC.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025749267FDCAEC4BFD06FB4A.taxon	description	Figs 2 I, 5 I, 9 B, 12 I, 14 R, 17	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025749267FDCAEC4BFD06FB4A.taxon	type_taxon	Type species Peloriolus granulosus Delève, 1964.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025749267FDCAEC4BFD06FB4A.taxon	diagnosis	Differential diagnosis Peloriolus is characterized by the combination of the following characters: 1) body (Figs 2 I, 9 B) elongate to obovate; 2) antennae with segments 3 – 10 filiform; segment 11 longer; 3) surface of the pronotum (Figs 2 I, 5 I, 9 B) moderately smooth, granulose; lateral margin in some species serrate; anterolateral angles feebly to moderately produced; sides subparallel in basal 1 / 3 then broadly narrowing from base to prolonged anterior margin; sublateral carinae indistinct to distinct in basal 1 / 3; median groove absent; 4) surface of the elytra (Figs 2 I, 9 B) granulose; sides subparallel in basal 2 / 3, then tapered into rounded apex; carinae absent or present basally; intervals nearly flat to slightly raised; 5) prosternum moderately short in front of procoxae; anterior margin medially broadly emarginate, laterally slightly lowered, without distinct indentation; prosternal process moderately wide with rounded apex (Fig. 12 I); 6) legs with femora stout, tarsal claws (Fig. 14 R) simple.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025749267FDCAEC4BFD06FB4A.taxon	description	Similar genera Peloriolus could be confused with Leielmis due to their smaller, compact body size, mostly simple pronotum, and similar moderately short, medially emarginate prosternum with a wide prosternal process. However, the sides of the pronotum in Peloriolus are subparallel in the basal third before narrowing to the prolonged anterior margin, whereas in Leielmis, the sides broadly narrow from the base. Larva Described and illustrated by Bertrand (1962) as Helmiinae genus S 3.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025749267FDCAEC4BFD06FB4A.taxon	distribution	Distribution Currently endemic to South Africa; previously reported from Saint Helena, where it is extinct. The record from Angola is omitted (see Discussion).	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025759267FD8CEED1FBE7FA43.taxon	description	Fig. 17	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025759267FD8CEED1FBE7FA43.taxon	materials_examined	Material examined SAINT HELENA • 2 ex.; “ 79 ∙ 34 [Under card] // Type // St. Helena <3730> // Elmis brunneus (Type) F. Waterh. // Peloriolus brunneus viol. Jäch ’ 13 ”; illustrated in Fig. 17; BMNH.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025759267FD80EFE0FEA2F955.taxon	materials_examined	Material examined SOUTH AFRICA • 1 ♂; “ ♂ // C. S. I. R. - Stream Survey 6 AA // S. Africa Great Berg River bove Groot Drakenstein // J. Delève det., 1964 P. costulatipennis Del. // H. E. Hinton collection B. M. 1977 - 566 ”; BMNH.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025759268FDE8ECD8FE49FD65.taxon	description	Figs 2 I, 5 I, 9 B, 12 I, 14 R	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025759268FDE8ECD8FE49FD65.taxon	materials_examined	Material examined SOUTH AFRICA • 1 ♂; “ ♂ // Stn. No. 30 // S. AFRICA: Cape Province Somerset West District J. Balfour-Browne B. M. 1954 - 798 // Steenbras Dam 19. iii. 1954 in damp trickles on stream bed 1600 ft // Prépar. genit. N ° 21164.6 // J. Deleve det., 1965 Peloriolus granulosus Delève ”; illustrated in Figs 2 I, 5 I, 9 B, 14 R; BMNH • 1 ♂; “ ♂ // Stn. No. 39 // Cape Province Swellendam Wolfkloof, 12. iii. 1954. In mountain stream in deep gorge, 1500 ft. // S. AFRICA: Cape Province Swellendam District. J. Balfour-Browne. B. M. 1954 - 797. // Prépar. genit. N ° 21165.1 // J. Delève det., 965 Peloriolus granulosus Dlve ”; illustrated in Fig. 12 I; BMNH • 1 ex.; “ 555 B S. Africa Great Borg River French Hook Forest Reserve 17. 9. 52 // J. Deleve det., 1964 P granulosus Del. // H. E. Hinton collection. B. M. 1977 - 566. ”; BMNH • 2 ex.; “ 6 AA S. Africa Great Borg River French Hook Forest Reserve 24. 5. 50 // J. Deleve det., 1964 P. granulosus Del. // H. E. Hinton collection. B. M. 1977 - 566. ”; BMNH • 1 ♀; “ ♀ // S. Africa Great Borg River French Hook Forest Reserve 24. 5. 50 6 AA // J. Deleve det., 1964 P. granulosus Del. // H. E. Hinton collection. B. M. 1977 - 566. ”; BMNH • 1 ♂; “ ♂ // S. Africa Great Borg River French Hook Forest Reserve 24. 5. 50 6 AA // J. Deleve det., 1964 P. granulosus Del. // H. E. Hinton collection. B. M. 1977 - 566. ”; BMNH.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230257A9268FDFAE8C3FBE1FC53.taxon	materials_examined	Material examined SOUTH AFRICA • 2 ♂; “ 2 ♂ (BMNH): “ ♂ // 1256 S. Africa Great Berg River French Hoek Forest Reserve 30. 10. 50 // J. Delève det., 1964 P. parvulus Del. // H. E. Hinton collection. B. M. 1977 - 566 ”; BMNH • 1 ♀; “ ♀ // 1256 S. Africa Great Berg River French Hoek Forest Reserve 30. 10. 50 // J. Delève det., 1964 P. parvulus Del. // H. E. Hinton collection. B. M. 1977 - 566 ”; BMNH.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230257A9268FDFAE9F0FC55FA71.taxon	materials_examined	Material examined SOUTH AFRICA • 1 ♂; “ Type // ♂ // Stn. No. 39 // S. AFRICA: Angola. Hulia District. J. Balfour-Browne. B. M. 1954 - 797. // Cape Province. Swellendam. Wolfkloof, 12. III. 1954. In mountain stream In deep gorge, 1500 ft. // Prépar. Genit. N ° 21165.4 // J. Delève det., 1965 Peloriolus patruelis n. sp ”; BMNH • 1 ♂; “ Para- Type // ♂ // Stn. No. 39 // Cape Province. Swellendam. Wolfkloof, 12. III. 1954. In mountain stream In deep gorge, 1500 ft. // S. AFRICA: Angola. Hulia District. J. Balfour-Browne. B. M. 1954 - 797. // Prépar. Genit. N ° 21165.3 // J. Delève det., 1965 Peloriolus patruelis n. sp ”; BMNH • 1 ♀; “ Para- Type // ♀ // Stn. No. 39 // Cape Province. Swellendam. Wolfkloof, 12. III. 1954. In mountain stream In deep gorge, 1500 ft. // S. AFRICA: Angola. Hulia District. J. Balfour-Browne. B. M. 1954 - 797. // Prépar. Genit. N ° 21165.3 // J. Delève det., 1965 Peloriolus patruelis n. sp ”; BMNH.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230257A9269FE5EEFBCFDA3FB4B.taxon	description	Figs 3 A, 6 A, 9 C, 13 A, 14 S	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230257A9269FE5EEFBCFDA3FB4B.taxon	type_taxon	Type species Ancyronyx quadriguttatus Delève, 1937.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230257A9269FE5EEFBCFDA3FB4B.taxon	diagnosis	Differential diagnosis Pseudancyronyx is characterized by the combination of the following characters: 1) body (Figs 3 A, 9 C) elongate; 2) antennae compact; segments 3 – 11 filiform; 3) surface of the pronotum (Figs 3 A, 6 A, 9 C) smooth to glabrous, partly coarse; anterolateral angles feebly produced; sides broadly arcuate from base to transverse impression then almost straight; carinae absent; median groove absent; complete transverse impression in apical half; medially with two large prebasal gibbosities; 4) surface of the elytra (Figs 3 A, 9 C) moderately smooth to glabrous; sides subparallel in basal 2 / 3, then tapered into rounded apex; carinae absent; intervals nearly flat; 5) prosternum very short in front of procoxae, without chin piece; anterior margin without distinct indentation; prosternal process markedly wide with broadly rounded apex (Fig. 13 A); 6) very long legs with femora narrow, tarsal claws (Fig. 14 S) with one basal tooth.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230257A9269FE5EEFBCFDA3FB4B.taxon	description	Similar genera Very long legs, similar body shape, and simple elytra without carinae may superficially resemble Pseudomacronychus. However, its pronotum, featuring a complete transverse impression in the apical half, is markedly different to the simple one of Pseudomacronychus. This character is found only in one additional Afrotropical genus, Leptelmis, though the two genera are completely dissimilar. The pronotal structure, along with the very short prosternum and shorter antennomeres, will reliably distinguish this genus from all other genera of Elminae. Larva Described and illustrated by Bertrand (1962) as Ancyronyx.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230257A9269FE5EEFBCFDA3FB4B.taxon	distribution	Distribution Widespread in Cameroon, Democratic Republic of the Congo, Kenya, Republic of the Congo, Rwanda, South Africa, Swaziland, Tanzania, Uganda. New country records for Gabon, Zimbabwe and Togo.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230257B9269FDA2EEE8FEA7FA38.taxon	materials_examined	Material examined TANZANIA • 1 ex.; “ HOLOTYPUS // COLL. MUS. CONGO. Tanganyika Terr.: Bunduki Uluguru Mts., moy. Mgeta 1300 m. 30 - IV / 11 - V- 1957 // Mission Zoolog. I. R. S. A. C. en Afrique orientale (P. Basilewsky et N. Leleup) // TYPE // Prep. Micro IIS 102591 // E. Janssens det., 1959 Ancyronyx Basilewskyi n. sp. ”; MRAC.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230257B9269FE49EC1EFAA0F92C.taxon	materials_examined	Material examined SOUTH AFRICA • 1 ♀; “ ♀ // Para- type // Olifants-Klip River System St. 7 61 g 30. 12. 59 N. I. W. R. // J. Delève det., 1970 Ps. humeralis natalensis subsp. n // I. R. Sc. N. B. I. G. 25.041 Coll. & det. J. Delève ”; IRSNB.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230257B9269FD8CED05FC1BF83E.taxon	materials_examined	Material examined DEMOCRATIC REPUBLIC OF THE CONGO • 1 ex.; “ HOLOTYPUS // MUSÉE DU CONGO Kasai: Ngombe 16 - IX- 1921 Dr H. Schouteden // R. DÉT. B 1401 // ancyronyx insignis n. sp. // R. DÉT. BB 3463 // J. Delève det. 1937; Ancyronyx Type insignis n. sp. ”; MRAC.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
038562302578926AFD83EB0AFAECFE3F.taxon	materials_examined	Material examined DEMOCRATIC REPUBLIC OF THE CONGO • 1 ♂; “ ♂ // Para- type // BELGIAN CONGO: Kivu Prov. 2500 m. alt. // CNHM 1961 Purchased ex Ch. De Wyngaert (Brussels) // Prépar. genit. N ˚ 16370.5 // J. Delève det., 1970 Ps. kivuensis n. sp. // I. R. Sc. N. B. I. G. 25.041 Coll. & det. J. Delève ”; IRSNB.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
038562302578926AFDB5E815FEA7FD0E.taxon	materials_examined	Material examined CAMEROON • 1 ♂; “ ♂ // Para- type // Cameroun – 1949 - 50 13 | 12 – 222 Lok. R. F. Nyong. loc. 174 J. B. - S. J. D. // J. Delève det., 1962 Anc. posticalis n. sp. // I. R. Sc. N. B. I. G. 25.041 Coll. & det. J. Delève ”; IRSNB.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
038562302578926AFE56E90DFDD7FBE5.taxon	description	Figs 3 A, 6 A, 9 C, 13 A, 14 S	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
038562302578926AFE56E90DFDD7FBE5.taxon	materials_examined	Material examined DEMOCRATIC REPUBLIC OF THE CONGO • 1 ex.; “ TYPE // SANZULU 4 - 4 - 26 A. COLLART // Delève det., 1937 A. 4 guttatus n. sp. // I. R. Sc. N. B. I. G. 25.041 Coll. & det. J. Delève ”; illustrated in Figs 3 A, 6 A, 9 C, 13 A, 14 S; IRSNB.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
038562302578926AFD89EE42FEA0FAF7.taxon	materials_examined	Material examined DEMOCRATIC REPUBLIC OF THE CONGO • 1 ex.; “ TYPE // SINGA-KONDO 20 - VI- 26 A. COLLART // Delève det., 1937 A. robustus n. sp. // I. R. Sc. N. B. I. G. 25.041 Coll. & det. J. Delève ”; IRSNB.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
038562302578926AFD8BEF4DFBECFA1B.taxon	materials_examined	Material examined RWANDA • 1 ♂; “ HOLOTYPUS // COLL. MUS. CONGO. Ruanda: Shangugu, 1500 m. - IV- 1953 P. Basilewsky // J. Delève det., 1955 Ancyronyx ♂ spathifer n. sp Type ”; MRAC.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
038562302579926BFDE9EB0BFAEDF802.taxon	description	Figs 3 B, 6 B, 9 D, 13 B, 14 T	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
038562302579926BFDE9EB0BFAEDF802.taxon	type_taxon	Type species Elmidolia biapicata Fairmaire, 1898.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
038562302579926BFDE9EB0BFAEDF802.taxon	diagnosis	Differential diagnosis Pseudelmidolia is characterized by the combination of the following characters: 1) body (Figs 3 B, 9 D) robust, elongate; 2) antennae with segments 3 – 10 filiform; segment 11 longer; 3) surface of the pronotum (Figs 3 B, 6 B, 9 D) alutaceous to smooth, granulose; lateral margin sometimes serrate; anterolateral angles moderately to distinctly produced; sides broadly arcuate; sublateral carinae indistinct to distinct in basal 1 / 3; prescutellar carinae absent to short; median longitudinal groove absent or thin and shallow; 4) surface of the elytra (Figs 3 B, 9 D) moderately smooth; sides subparallel in basal 2 / 3, then tapered into rounded apex; granulate sublateral carinae feeble to distinct at least on 5 th and 7 th intervals; intervals nearly flat; 5) prosternum moderately long in front of procoxae; anterior margin laterally lowered and indented; prosternal process moderately wide, apex varies from arrow-head to almost rounded or medially emarginate (Fig. 13 B); 6) legs with femora stout, tarsal claws (Fig. 14 T) simple.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
038562302579926BFDE9EB0BFAEDF802.taxon	discussion	Remarks The male genitalia exhibit considerable variation, suggesting that the genus may require subdivision (Delève 1963). Additionally, the body shapes and the sculpturing of the pronotum and elytra show significant differences, underscoring the need for a comprehensive generic revision to clarify its monophyly.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
038562302579926BFDE9EB0BFAEDF802.taxon	description	Similar genera The broad body shape, simple pronotum, and simple tarsal claws place Pseudelmidolia close to Lobelmis, though it differs in simple antennae and longer prosternum. Some species of Pseudelmidolia can be confused with Aspidelmis due to shared features such as a pronotum with sublateral and prescutellar carinae, elytra with sublateral carinae on the 5 th and 7 th intervals, and simple tarsal claws. However, Pseudelmidolia differs by its broader pronotum relative to the elytra and its granulate rather than crenulate elytral carinae. Larva Described and illustrated by Bertrand (1962) as Elmidolia.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
038562302579926BFDE9EB0BFAEDF802.taxon	distribution	Distribution Endemic to Madagascar.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230257E926CFDE0EB0AFACBFE5C.taxon	materials_examined	Material examined MADAGASCAR • 1 ♂; “ ♂ // TYPE // IIrivald bei Andrambovato 153 / 6. 8. 58 // O. Madagasc. Exp. 1958 leg. E. Pomezol // Prépar. genit. N ° 20163.7 // J. Delève det. 1963 Pseudelmidolia atra n. sp. Type ”; IRSNB.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230257E926CFDB8EBFBFB0FFD4C.taxon	materials_examined	Material examined MADAGASCAR • 1 ex.; “ Para- type // Pèrinet // INSTITUT SCIENTIFIQUE MADAGAScAR // J. Delève det., 1963 Pseudelm. coriariocollis n. sp // R. I. Sc. N. B. I. G .. 22.864 ″; IRSNB.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230257E926CFDB5E8EBFE02FC5B.taxon	materials_examined	Material examined MADAGASCAR • 1 ♂; “ ♂ // TYPE // Madagascar Andrambovato F. M. 131 / 6.8.58 // F. Starmuhler // Prépar. genit. N ° 231632 // J. Delève det., 1963 Pseudelmidolia disconcinna n. sp Type // R. I. Sc. N. B. I. G .. 22.864 ″; IRSNB.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230257E926CFDECE9FFFE00FB37.taxon	materials_examined	Material examined MADAGASCAR • 1 ♂; “ ♂ // Para- type // Ampijoroa Tsaramandroso // INSTITUT SCIENTIFIQUE MADAGASCAR / Prépar. genit. N ° 20163.5 // J. Delève det., 1963 Pseudelmid. fusca n. sp // R. I. Sc. N. B. I. G .. 22.864 ″; IRSNB.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230257E926CFD9FEF12FBC5FA27.taxon	materials_examined	Material examined MADAGASCAR • 1 ex.; “ Para- type // Pèrinet // INSTITUT SCIENTIFIQUE MADAGAScAR // J. Delève det., 1963 Pseudelm. gregaria n. sp // R. I. Sc. N. B. I. G .. 22.864 ″; IRSNB.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230257E926CFD91EC02FBE8F954.taxon	materials_examined	Material examined MADAGASCAR • 1 ♂; “ ♂ // TYPE // Madagascar Andrambovato F. M. 131 / 6.8.58 // Prépar. genit N ° 23163.3 // J. Delève det., 1963 Pseudelmidolia humilis n. sp Type ”; IRSNB.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230257E926CFD8AECF3FE00F80E.taxon	materials_examined	Material examined MADAGASCAR • 1 ♂; “ ♂ // TYPE // Madagascar Lac froid .. affl. Ankaratra. Geb. // F. M. 60 / 17.7.58 quant. F. Starmuhler // FM 60 / 17.7.1958 / quant. Lac froid-ZūflūB ANKARATRA geb. <Ő. Madagascar E. 1958 leg. F. Starmuhler> // J. Deleve det., 1963 Pseudelmidolia metatibialis n. sp Type // R. I. Sc. N. B. I. G .. 22.864 ″; IRSNB.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230257F926DFD9BEB0AFACBFE59.taxon	materials_examined	Material examined MADAGASCAR • 1 ♂; “ Para- type // Perinet // INSTITUT SCIENTIFIQUE MADAGASCAR // Prépar. genit N ° 20163.1 // J. Delève det., 1963 Pseudelmidolia nigricula n. sp // R. I. Sc. N. B. I. G .. 22.864 ″; IRSNB.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230257F926DFDB2E803FCFEFD3C.taxon	materials_examined	Material examined MADAGASCAR • 1 ♂; “ ♂ // Fampanambo II. 1959 20 (Lavage de terre) // MUS. ROY. AFR. CENTR. Madagascar Est: Baie d’Antongil J. Vadon // Para- Par type typ // Prépar. genit. N ° 153633 // J. Delève det., 1963 Pseudelmidolia pallidipennis n. sp ”; IRSNB.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230257F926DFD86E91EFAEAFC35.taxon	materials_examined	Material examined MADAGASCAR • 1 ♀; “ ♀ // quelle von Nanokely 115 / 26. 7. 58 // Ost. Madag. Exp. 1958 leg. E. Pomeisl // J. deleve det., 1963 Pseudelmidolia soror Grouv. // H. E. Hinton collection B. M. 1977 - 566. ”; BMNH.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230257F926DFD8BEE16FB96FB08.taxon	materials_examined	Material examined MADAGASCAR • 1 ♂; “ ♂ // TYPE // FM 217 / 11.3 1958 Mandromodronotoa Dadr 20 km N de FORT DAUPHIN <Ő. MadagascarE. 1958 leg. F. Starmuhler> // Prépar. genit. N ° 2013.8 // J. Delève det., 1963 Pseudelmidolia starmuhleri n. sp Type // R. I. Sc. N. B. I. G .. 22.864 ″; IRSNB.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230257F926DFDB1EF1BFBB9F9D8.taxon	description	Figs 3 B, 6 B, 9 D, 13 B, 14 T	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230257F926DFDB1EF1BFBB9F9D8.taxon	materials_examined	Material examined MADAGASCAR • 1 ♂; “ MADAGASCAR, 24. - 27. i. 2013, ZOMBITSE N. P., (main entr.), Ambakintany forest, 816 m, S 22 ˚ 53 ′ 11 ″, E 44 ˚ 41 ′ 31 ″, M. Trýzna leg. // BMNH (E) 2016 - 44 ″; BMNH • 1 ♂; “ MADAGASCAR 2011 ANKARAFANTSIKA N. P. S 16 18 ′ 43 ″, E 46 48 ′ 59 ″ 100 M; 23. IV.; local coll. // BMNH (E) 2016 - 44 ″; illustrated in Figs 3 B, 6 B, 9 D, 13 B, 14 T; BMNH.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230257F926DFD87EC7DFACBF8D3.taxon	materials_examined	Material examined MADAGASCAR • 1 ♂; “ ♂ // TYPE // Madagascar Andrambovato F. M. 131 / 6.8.58 // Prépar. genit. N ° 23163.7 // J. Delève det., 1963 Pseudelmidolia verrucosa n. sp Type // R. I. Sc. N. B. I. G .. 22.864 ”; IRSNB.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230257F926EFDBBED63FC35FA03.taxon	description	Figs 3 C, 6 C, 9 E, 13 C, 14 U, 15 C	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230257F926EFDBBED63FC35FA03.taxon	type_taxon	Type species Pseudomacronychus castaneus Grouvelle, 1906.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230257F926EFDBBED63FC35FA03.taxon	diagnosis	Differential diagnosis Pseudomacronychus is characterized by the combination of the following characters: 1) body (Figs 3 C, 9 E) elongate; 2) antennae with segments 3 – 10 filiform; segment 11 longer (Fig. 15 C); 3) surface of the pronotum (Figs 3 C, 6 C, 9 E) alutaceous to moderately smooth, sometimes granulose; anterolateral angles feebly to moderately produced; sides arcuate; carinae absent; median longitudinal groove absent or thin and shallow; 4) surface of the elytra (Figs 3 C, 9 E) moderately coarse to smooth; sides subparallel in basal 2 / 3, then tapered into rounded apex; carinae absent; intervals nearly flat; 5) prosternum moderately short in front of procoxae; anterior margin laterally lowered and feebly indented; prosternal process wide with broadly rounded apex (Fig. 13 C); 6) very long legs with femora narrow, tarsal claws (Fig. 14 U) with one basal tooth.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230257F926EFDBBED63FC35FA03.taxon	description	Similar genera Pseudomacronychus can superficially resemble Pseudancyronyx, as both genera have very long legs and simple elytra lacking carinae, and it may also resemble Eumicrodinodes, as both possess a simple pronotum. Moreover, all three genera share tarsal claws with a single basal tooth. However, Pseudomacronychus can be reliably distinguished from Pseudancyronyx by its simple pronotum, and from Eumicrodinodes by its narrow femora and simple elytra without carinae. Larva Described and illustrated by Bertrand (1962) as Helmiinae genus A.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230257F926EFDBBED63FC35FA03.taxon	distribution	Distribution Widespread in Angola, Côte d’Ivoire, Democratic Republic of the Congo, Gabon, Ghana, Guinea, Kenya, Liberia, Republic of the Congo, Rwanda, South Africa, Tanzania. New country records for Benin, Burkina Faso, Cameroon, Togo and Zambia.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230257C926EFD88EC17FB24F907.taxon	materials_examined	Material examined DEMOCRATIC REPUBLIC OF THE CONGO • 1 ♂; “ ♂ // TYPE // BUHUDE. Biruwe 20. IX. 29 A. COLLART // Riv Felowa // Prépar. genit. N ˚ 4964.9 // J. Delève det., 1944 Ps. occidentalis All. // J. Delève Ps. brevis n. sp. // I. R. Sc. N. B. I. G. 25.041 Coll. & det. J. Delève ”; IRSNB.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230257C926EFE7AED10FE64F80E.taxon	materials_examined	Material examined DEMOCRATIC REPUBLIC OF THE CONGO • 1 ♂; “ TYPE // LOLO DAMVU 17 - IV- 26 A. COLLART // ♂ // J. Delève det., 1944 castaneus Gr. Type litigiosus subsp. nov. // I. R. Sc. N. B. I. G. 25.041 Coll. & det. J. Delève ”; IRSNB.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230257D926FFE4DEB0AFAB0FE50.taxon	materials_examined	Material examined ANGOLA • 1 ♂; “ ♂ // Para- type // Angola Mussunge (r) 15. VII. 57 H. Bertrand // Prépar. genit. N ˚ 30126410 // J. Delève det., 1964 Ps. miliaris n. sp. // I. R. Sc. N. B. I. G. 25.041 Coll. & det. J. Delève ”; IRSNB.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230257D926FFE40EBF6FE71FD23.taxon	materials_examined	Material examined ANGOLA • 1 ♂; “ ♂ // Para- type // Angola afll. Luachimo rte Turismo 28. VI. 57 H. Bertrand // Prépar. genit. N ˚ 301264.5 // J. Delève det., 1964 Ps. castaneus nitidus subsp. n. // I. R. Sc. N. B. I. G. 25.041 Coll. & det. J. Delève ”; IRSNB.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230257D926FFDBEE900FAE4FC56.taxon	materials_examined	Material examined DEMOCRATIC REPUBLIC OF THE CONGO • 1 ♂; “ TYPE // SINGA-KONDO 20 - VI- 26 A. COLLART // ♂ // J. Delève det., 1937 Ps. humeralis n. sp. // I. R. Sc. N. B. I. G. 25.041 Coll. & det. J. Delève ”; IRSNB.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230257D926FFDA0E9D5FE12FA5E.taxon	description	Figs 3 C, 6 C, 9 E, 13 C, 14 U, 15 C	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230257D926FFDA0E9D5FE12FA5E.taxon	materials_examined	Material examined BENIN • 3 ex.; “ BÉNIN loc. 22 Sanson, W. o. Parakou 21. VII. 1989 leg. j. v. Vondel ”; NHMW. CÔTE D’IVOIRE • 10 ex.; “ IVORY COAST, 380 m, Yeale Village, Mt Nimba, 07 ° 31 ′ 35.3 ″ N, 08 ° 25 ′ 20.1 ″ W, 18 - 29. IV. 2016, Light Trap, // Aristophanous, M., Geiser, M., Moretto, P., leg., BMNH (E) 2016 - 109, Trip “ Ref: CI- 003 (ANHRT 17) ”; illustrated in Figs 3 C, 6 C, 9 E, 13 C, 14 U, 15 C; BMNH. DEMOCRATIC REPUBLIC OF THE CONGO • 1 ♀; “ ♀ // HOLOTYPUS // Cono Belge P. N. G. Miss. H. De Saeger Naluguambala, 2 - VI- 1950 Réc. H. De Saeger. 574 // COLL. MUS. CONGO (ex coll. I. P. N. C. B.) // TYPE TY // Prép. 121062 / 1 // // J. Delève det., 1962 Pseudomacronychus intermedius n. sp Forme ailée. Type ”; MRAC.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230257D926FFD81EFF7FA82F90F.taxon	materials_examined	Material examined DEMOCRATIC REPUBLIC OF THE CONGO • 1 ♂; “ ♂ // HOLOTYPUS // I. R. S. A. C. - MUS. CONGO Kivu: Terr. Kabare, Lwiro 2000 / 2200 m. IX- 1953 N. Leleup // TYPE <ovatus Delève> // Prépar. genit. N ˚ 261163.2 // J. Delève det., 1965 Ps. ovatus n. sp ”; MRAC • 1 ♀; “ ♀ // PARATYPUS // I. R. S. A. C. - MUS. CONGO Kivu: Terr. Kabare, Lwiro 2000 / 2200 m. IX- 1953 N. Leleup // J. Delève det., 1964 Ps. ovatus n. sp ”; MRAC.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230257D926FFDA5ED25FB40F832.taxon	materials_examined	Material examined RWANDA • 1 ♂; “ HOLOTYPUS COLL. MUS. CONGO. Ruanda: Shangugu 1500 m, 6 - IV- 1953 P. Basilewsky // J. Delève det., 1955 Pseudomacronychus rufilabris n. sp ♂ ailé Type ”; MRAC.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025629270FE06E85FFB4BFB66.taxon	materials_examined	Material examined BURKINA FASO • 3 ex.; “ BURKINA FASO: Prov. Comoe Karfiguela. river 10.72244938 / 4.82181218 03.07.2012, leg. I. Kaboré (A 5) ”; NHMW. CAMEROON • 3 ex.; “ SW-CAMEROON: Etam 4 ° 42.43 ′ N 9 ° 32.36 ′ E 8. 4. 1997 leg. J. Denton ”; NHMW • 1 ex.; “ CAMEROON, Rég. Centre, Nyong-et-So’o, Ebogo, (Light trap), alt, 638 - 660 m., 3.39 ° N, 11.46 ° E, 20 - 21. IV. 2024, SEKI Kyōta leg. ”; KUMJ. CÔTE D’IVOIRE • 1 ♂; “ ♂ // HOLOTYPUS // COLL. MUS. TERVUREN Côte d’Ivoire: Divo J. Decelle 12. X. 1962 // Holotype // Prépar. genit. N ˚ 15165.5 // J. Delève det., 1965 Ps. scutellatus circumcinctus subsp n. ”; MRAC. TOGO • 1 ex.; “ TOGO: Reg. Plateaux Pref. Kloto, near Kpimé, ~ 1 km NW Seva (village), 10. II. 2006 leg. Komarek & Hounguè (31) // 06 ° 51 ′ 50.2 ″ N 00 ° 38 ′ 57.2 ″ E 300 a. s. l. small stream ”; NHMW.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025629270FE69EB0AFBFEFDC6.taxon	materials_examined	Material examined DEMOCRATIC REPUBLIC OF THE CONGO • 1 ♂; “ ♂ // HOLOTYPUS A // A la lumière // I. R. S. A. C. - MUS. CONGO Kivu: Terr. Masisi, 800 m, Mutakato IX- 1953 N. Leleup // TYPE // Prépar. genit. N ˚ 271163.6 // J. Delève det., 1965 Ps. scutellatus n. sp. ”; MRAC • 1 ♀; “ ♀ // PARATYPUS // Dans humus en forêt // I. R. S. A. C. - MUS. CONGO Kivu: Terr. Masisi, 800 m, Mutakato IX- 1953 N. Leleup // Prépar. genit. N ˚ 2165.7 // J. Delève det., 1965 Ps. scutellatus n. sp. ”; MRAC.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025629270FDA6EEBFFA93FA8D.taxon	materials_examined	Material examined DEMOCRATIC REPUBLIC OF THE CONGO • 1 ex.; “ TYPE // MADUDA 4 - VI- 26 A. COLLART // J. Delève det., 196 Ps. simulator n. sp. // I. R. Sc. N. B. I. G. 25.041 Coll. & det. J. Delève ”; IRSNB.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025629270FDA2EFAAFACBF9B0.taxon	materials_examined	Material examined DEMOCRATIC REPUBLIC OF THE CONGO • 1 ♂; “ TYPE // Sanzulu 4. IV. 26 A. Collart // ♂ // J. Delève det., 1944 Ps. variolosus n. sp. Type // I. R. Sc. N. B. I. G. 25.041 Coll. & det. J. Delève ”; IRSNB.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025639271FDB6EFF7FACBF920.taxon	description	Figs 3 D, 6 D, 14 V	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025639271FDB6EFF7FACBF920.taxon	materials_examined	Material examined MADAGASCAR • 1 ♂; “ ♂ // Madagr Suborblle H. Perrier // Prépar. genit. N ˚ 27867.4 // J. Delève det., 1967 Sphragidelmis atomarius Fmr // I. R. Sc. N. B. I. G. 24.229 ”; illustrated in Figs 3 D, 6 D, 14 V; IRSNB.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025639271FDECEB0BFD19FA28.taxon	description	Figs 3 D, 6 D, 9 F, 13 D, 14 V	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025639271FDECEB0BFD19FA28.taxon	type_taxon	Type species Limnius ikopae Fairmaire, 1898.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025639271FDECEB0BFD19FA28.taxon	diagnosis	Differential diagnosis Sphragidelmis is characterized by the combination of the following characters: 1) body (Figs 3 D, 9 F) compact, obovate; 2) antennae with segments 3 – 10 filiform; segment 11 longer; 3) surface of the pronotum (Figs 3 D, 6 D, 9 F) smooth to glabrous; lateral margin slightly serrate; anterolateral angles feebly produced; sides broadly arcuate, narrowing to prolonged anterior margin; sublateral carinae in basal 3 / 5; prescutellar carinae longer, arcuately diverging; median longitudinal groove indistinct or thin and shallow; 4) surface of the elytra (Figs 3 D, 9 F) smooth to glabrous, lateral margin slightly serrate; sides broadly arcuate, widest in the middle, then tapered into rounded apex; sublateral carina on 5 th interval; intervals flat, partly diminished; 5) prosternum moderately short in front of procoxae; anterior margin laterally lowered, without distinct indentation; prosternal process wide with subtriangular to rounded apex (Fig. 13 D); 6) legs with femora stout, tarsal claws (Fig. 14 V) simple.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025639271FDECEB0BFD19FA28.taxon	description	Similar genera An obovate body and long sublateral carinae on the pronotum place Sphragidelmis close to Helminthocharis and Pachyelmis. It can be distinguished from both genera by its shorter sublateral carinae on the pronotum and the presence of prescutellar, arcuately diverging carinae. Larva Unknown.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025639271FDECEB0BFD19FA28.taxon	distribution	Distribution Endemic to Madagascar.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025609272FDCFEB0BFCBDF838.taxon	description	Figs 3 E, 6 E, 10 A, 13 E, 14 W	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025609272FDCFEB0BFCBDF838.taxon	type_taxon	Type species Limnius canaliculatus Gyllenhal, 1808.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025609272FDCFEB0BFCBDF838.taxon	diagnosis	Differential diagnosis Stenelmis is characterized by the combination of the following characters: 1) body (Figs 3 E, 10 A) elongate; 2) antennae with segments 3 – 10 filiform; segment 11 longer; 3) surface of the pronotum (Figs 3 E, 6 E, 10 A) smooth to granulose; anterolateral angles moderately to distinctly produced; sides slightly arcuate to bisinuate; sublateral carinae absent to almost complete; median groove usually distinct, in many species with raised or carinate outline; transverse impression absent; some species have gibbosities or impressions on pronotum; 4) surface of the elytra (Figs 3 E, 10 A) smooth; sides subparallel in basal 2 / 3, then tapered into rounded apex; sublateral carina on 6 th interval, 3 rd interval flat or carinate basally, rarely completely; intervals nearly flat; 5) prosternum moderately long to long in front of procoxae; anterior margin laterally lowered without distinct indentation; prosternal process moderately wide, apically widened with rounded apex (Fig. 13 E), often medially emarginate; 6) legs with femora stout, tibiae without apical fringes, tarsal claws simple (Fig. 14 W) or with feebly developed basal tooth.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025609272FDCFEB0BFCBDF838.taxon	description	Similar genera Stenelmis is closely related to Leptelmis, sharing the lack of cleaning fringe on the inner margin of the protibia and a similar body shape. However, it is distinguished by the absence of a transverse impression on the pronotum, the presence of a median groove in most species, and shorter legs. Larva First time described and illustrated from USA by Matheson (1914). For detailed description see e. g., Bertrand (1962), Hayashi & Yoshitomi (2014).	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025609272FDCFEB0BFCBDF838.taxon	distribution	Distribution Widespread in Angola, Burkina Faso, Cameroon, Central African Republic, Côte d’Ivoire, Democratic Republic of the Congo, Ethiopia, Gabon, Ghana, Guinea, Kenya, Liberia, Malawi, Republic of the Congo, Rwanda, Sierra Leone, South Africa, Tanzania, Uganda. New country records for Benin, Togo and Zambia. Occurs also in the Indomalayan, Nearctic and Palaearctic regions.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025619273FDC9EB0AFB71FE50.taxon	materials_examined	Material examined DEMOCRATIC REPUBLIC OF THE CONGO • 1 ♂; “ ♂ // PARATYE // Elisabethville 25 / 30 - XI- 1930 R. Masart // Prépar. genit. N ° 17964.4 // J. Delève det., 1938 St. adusta n. sp. ♂ ”; IRSNB.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025619273FDE2EBF6FD79FD23.taxon	materials_examined	Material examined ANGOLA • 1 ♂; “ ♂ // Para- type // Angola Env. Dundo. V. 1966 Luna // Forêt. galerie Sources R, Mussungue Piscine du Dundo // Ang 198541 // J. Delève det., 1966 St. angolensis n. sp. // I. R. Sc. N. B. I. G. 25.041 Coll. & det. J. Delève ”; IRSNB.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025619273FDF0E900FA9EFC56.taxon	materials_examined	Material examined COTE D’IVOIRE • 1 ♂; “ ♂ // Cote d’Ivoire: Divo. Decelle 28 12. XI. 1963 // COLL. MUS. TERVUREN // J. Delève det., 1964 St. aphela All. // I. R. Sc. N. B. I. G. 25.041 Coll. & det. J. Delève ”; IRSNB.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025619273FDDAE9EFFC1BFB59.taxon	materials_examined	Material examined SOUTH AFRICA • 1 ex.; “ Type // New Hanover. XII. 16.1916 Natal C. B. Hardenberg // Brit. Mus. 1940 - 99 // Stenelmis ares Hinton Type ”; BMNH • 4 ex.; “ New Hanover. XII. 16.1916 Natal C. B. Hardenberg // Brit. Mus. 1940 - 99 // Stenelmis ares Hinton P-type ”; BMNH.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025619273FDF3EEFEFE1AFA2B.taxon	materials_examined	Material examined CAMEROON • 1 ♂; “ ♂ // Para- type // Cameroun – 1949 - 50 13 | 12 – 222 // Lok. R. F. Nyong. loc. 174 J. B. - S. J. D. // 31762 / 2 // J. Delève det., 1962 St. calceata n. sp. // I. R. Sc. N. B. I. G. 25.041 Coll. & det. J. Delève ”; IRSNB.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025619273FDECEC08FCB8F93D.taxon	materials_examined	Material examined DEMOCRATIC REPUBLIC OF THE CONGO • 1 ♂; “ ♂ // Elisabethville (à la lumière) 1 - III- 52 / 30 - IX- 1953 Ch. Seydel // Prépar. genit. N ˚ 121064.5 // J. Delève det., 1965 St. carbonaria n. sp. // Para- type // I. R. Sc. N. B. I. G. 25.041 Coll. & det. J. Delève ”.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025619273FDE2ED13FE2AF804.taxon	materials_examined	Material examined CÔTE D’IVOIRE • 1 ex.; “ PARATYPUS // MUSÉE DU CONGO Man Côte d’Ivoire {don Ch. Alluaud} // R. DÉT. J 3461 // R DÉT. Q 3254 // Prépar. genit. N ° 2563.3 // Stenelmis Chappuisi Cotype Alluaud, det. 192 ”; MRAC.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025669274FDF2EB0AFA9EFE23.taxon	materials_examined	Material examined CÔTE D’IVOIRE • 1 ♂; “ ♂ // Cote d’Ivoire Touba // Prépar. genit. N ° 171164.3 // Para- Pa type ty // J. Delève det., 1964 St. confusa n. sp. // I. R. Sc. N. B. I. G. 25.041 Coll. & det. J. Delève ”; IRSNB.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025669274FDF6E808FACBFD21.taxon	materials_examined	Material examined CÔTE D’IVOIRE • 1 ♂; “ ♂ // Para- type // COLL. MUS. TERVUREN Côte d’Ivoire: Divo J. Decelle 28. XI. 1963 // J. Delève det., 1964 St. cristata n. sp // I. R. Sc. N. B. I. G. 25.041 Coll. & det. J. Delève ”; MRAC.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025669274FDF7E90EFACBFC2F.taxon	materials_examined	Material examined CÔTE D’IVOIRE • 1 ♂; “ ♂ // Para- type // Cote d’Ivoire: Divo J. Decelle 28. XI. 1963 // COLL. MUS. TERVUREN // J. Delève det., 1964 St. decellei n. sp. // I. R. Sc. N. B. I. G. 25.041 Coll. & det. J. Delève ”; IRSNB.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025669274FDFCEE0CFC1AFB08.taxon	materials_examined	Material examined DEMOCRATIC REPUBLIC OF THE CONGO • 1 ♂; “ ♂ // Elisabethville (à la lumière) 1 - III- 52 / 30 - IX. 1953 Ch. Seydel // Prépar. genit. N ° 24964.1 // J. Delève det., 1965 Stenelmis fastuosa n. sp // Paratype // I. R. Sc. N. B. I. G. 25.041 Coll. & det. J. Delève ”; IRSNB.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025669274FDC3EF31FB04F9F2.taxon	materials_examined	Material examined SOUTH AFRICA • 1 ex.; “ Estcourt, Natal. G. A. K. Marshall. reverse: Feb. 1893 // Brit. Mus. 1922 - 431 // Type // Stenelmis gades Hinton Type ”; BMNH • 1 ♂: “ ♂ // S. Africa. R. E. Turner Brit. Mus. 1923 - 189 // Umatata, Transkei. 18. ii. - 18. iii. 1923. // Stenelmis gades Hinton P-Type ”; BMNH.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025669274FDECEC5AFBD1F80F.taxon	materials_examined	Material examined DEMOCRATIC REPUBLIC OF THE CONGO • 1 ex.; “ MADUDA - 1 - 25 A. COLLART // Para- type // J. Delève det., 1938 St. bidenticulata n. sp. // H. E. Hinton collection. B. M. 1977 - 566. ”; BMNH • 1 ex.; “ MADUDA - 1 - 25 A. COLLART // Para- type // J. Delève det., 1938 St. bidenticulata n. sp. // H. E. Hinton collection. B. M. 1977 - 566. // St. bidenticulata n. sp. // H. E. Hinton collection. B. M. 1977 - 566. ”; BMNH • 1 ex.; “ MADUDA - 1 - 25 A. COLLART // Para- type // J. Delève det., 1938 St. bidenticulata n. sp. // H. E. Hinton collection. B. M. 1977 - 566. // St. bidenticulata ♂ n. sp. // H. E. Hinton collection. B. M. 1977 - 566. ”; BMNH • 1 ex.; “ MADUDA - 1 - 25 A. COLLART // Para- bidenticulata type // J. Delève det., 1938 St. bidenticulata n. sp. // H. E. Hinton collection. B. M. 1977 - 566. ”; BMNH.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025679275FDC4EB0AFC97FDC6.taxon	materials_examined	Material examined CAMEROON • 1 ♂; “ ♂ // Type // CAMEROONS D. R. Rosevear // Brit. Mus. 1940 - 99 // Stenelmis hera Hinton Type ”; BMNH • 2 ♀♀: “ ♀ // CAMEROONS D. R. Rosevear // Brit. Mus. 1940 - 99 // Stenelmis hera Hinton P-Type ”; BMNH • 2 ♂♂; “ ♂ // CAMEROONS D. R. Rosevear // Brit. Mus. 1940 - 99 // Stenelmis hera Hinton P-Type ”; BMNH • 1 ex.; “ CAMEROONS D. R. Rosevear // Brit. Mus. 1940 - 99 // Stenelmis hera Hinton P-Type ”; BMNH.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025679275FDFBE85FFCA8FCB4.taxon	description	Figs 3 E, 6 E, 10 A, 13 E, 14 W	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025679275FDFBE85FFCA8FCB4.taxon	materials_examined	Material examined CÔTE D’IVOIRE • 1 ♀; “ ♀ // Para- type // Côte d’Ivoire: Divo J. Decelle 28. XI. 1963 // Prépar. genit. N ° 211264.2 // J. Delève det., 1964 St. Laeticollis n sp // I. R. Sc. N. B. I. G. 25.041 Coll. & det. J. Delève ”; illustrated in Figs 3 E, 6 E, 10 A, 13 E, 14 W; IRSNB.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025679275FDF8E98DFE77FB86.taxon	materials_examined	Material examined LIBERIA • 8 ex.; “ LIBERIA Suakoko X II- 19 - 51 // 6 - 9 pm light trap Blickenstaff // BM. 1979 - 136 // PARATYPE ”; BMNH • 1 ex.; “ LIBERIA Suakoko I. 31 1952 Blickenstaff // ♂ // BM. 1979 - 136 // PARATYPE ”; BMNH.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025679275FDF6EE9FFA90FA89.taxon	materials_examined	Material examined SIERRA LEONE • 1 ♂; “ ♂ // SIERRA LEONE Njala 15 xi- 8. xii 1930 E. Hargreaves At light // Stenelmis merella Hinton Type // Brit. Mus. 193940 - 99 ”; BMNH • 1 ♀; “ ♀ // SIERRA LEONE Njala 15 xi- 8. xii 1930 E. Hargreaves At light // Brit. Mus. 193940 - 99 // Stenelmis merella Hinton P-type ”; BMNH.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025679275FDCFEFAEFACBF9D1.taxon	materials_examined	Material examined CAMEROON • 1 ♀; “ ♀ // Kamerun Conradt // Stenelmis nomia Hinton Type // [Blue blank label] ”; BMNH.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025679275FD97EC76FC9CF82B.taxon	materials_examined	Material examined CÔTE D’IVOIRE • 1 ex.; “ PARATYPUS // MUSÉE DU CONGO Man Côte d’Ivoire (Leraba IV. 20) {don Ch. Alluaud} // R. DÉT. O 3254 // R DÉT. M 3461 // Prépar. genit. N ° 2563.23 // Stenelmis phymatodes Cotype Alluaud, det. 192 ”; MRAC. LIBERIA • 2 ex.; “ LIBERIA 140 m Krahn-Bassa Reserve, 7.5 km SW Pellokon Town, Juboe River, Sinoe County, 5 ° 39 ′ 4 ″ N; 8 ° 39 ′ 4 ″ W // 14 - 20. i. 2018 Edwards trap Geiser, M., Sáfián, Sz., & Simonics, G., leg. ANHRT 28, LR- 001, BMNH (E) 2018 - 39 ”; BMNH.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025649276FDE8EB0AFAFCFE4D.taxon	materials_examined	Material examined CAMEROON • 1 ♂; “ ♂ // Para- type // Cameroun – 1949 - 50 20 | - 454 Lok. R. F. Nyong J. B. - S. J. D. // 29762 / 4 // J. Delève det., 1962 St. planiuscula ♂ n. sp // I. R. Sc. N. B. I. G. 25.041 Coll. & det. J. Delève ”; IRSNB.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025649276FDF5EBDBFBCFFD9A.taxon	materials_examined	Material examined MALAWI • 1 ex.; “ Type // Nyasaland. Mianje. Mch. 18,191 3. S. A. Neave. 1913 - 140. // Aslayuya Nyasaland 25 · II · 1913. S. A. Neave. // Stenelmis prusias Hinton Type ”; BMNH.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025649276FDC0E8A8FE77FC96.taxon	materials_examined	Material examined ETHIOPIA • 1 ex.; “ Abyssinia Mulu, above Muger Valley. Circa 8,000 ft. 18 - 23. xii. 1926. Dr. H. Scott. // Brit. Mus 1933 - 136 // From vegetation near streams // Brit. Mus. 1927 - 127 // Stenelmis scottianus 1940 Hinton Type ”; BMNH.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025649276FD82E99CFB4EFBA7.taxon	materials_examined	Material examined DEMOCRATIC REPUBLIC OF THE CONGO • 1 ex.; “ MADUDA - 1 - 25 A. COLLART // PARATYPE // J. Delève det., 1937 St. simplex n. sp. // H. E. Hinton collection. B. M. 1977 - 566. ”; BMNH.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025649276FDC1EE6DFC85FAD3.taxon	materials_examined	Material examined DEMOCRATIC REPUBLIC OF THE CONGO • 1 ex.; “ TYPE // FARADJE: 8 ESENGE 19. III. 30 A. COLLART // Riv. Dola ” sur moule „. // Stenelmis Collarti All. Alluaud 1933 // Prépar. Genit. N ° 91264.1 // J. Delève det., 1938 St. soror n. sp. ♂ Type ”; IRSNB.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025649276FDF6EF61FB65F989.taxon	materials_examined	Material examined DEMOCRATIC REPUBLIC OF THE CONGO • 2 ex.; “ MADUDA - 1 - 25 A. COLLART // PARATYPE // J. Delève det., 1937 St. simplex n. sp. // H. E. Hinton collection. B. M. 1977 - 566. ”; BMNH • 2 ♂♂; “ PARATYPE // MADUDA - 1 - 25 A. COLLART // ♂ // J. Delève det., 1937 St. tarsalis n. sp. // H. E. Hinton collection. B. M. 1977 - 566. ”; BMNH • 1 ex.; “ SANZULU 4 - 4 - 26 A. COLLArT // Para- type // J. Delève det., 1937 St. tarsalis n. sp. // H. E. Hinton collection. B. M. 1977 - 566. ”; BMNH.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025649276FDC2EC9FFC89F853.taxon	materials_examined	Material examined UGANDA • 1 ♂; “ ♂ // Type // UGANDA. LALBERT. 845 BUHUKA. 14.4.28 E. B. WORTHINGTON. // Brit. Mus. 1929 - 201 // Stenelmis thusa Hinton Type ”; BMNH • 1 ♂; “ ♂ // UGANDA. LALBERT. 845 BUHUKA. 14.4.28 E. B. WORTHINGTON. // Brit. Mus. 1929 - 201 // Stenelmis thusa Hinton P-Type ”; BMNH • 1 ♀; “ ♀ // UGANDA. LALBERT. 845 BUHUKA. 14.4.28 E. B. WORTHINGTON. // Brit. Mus. 1929 - 201 // Stenelmis thusa Hinton P-Type ”; BMNH.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025659277FD85E97CFD10F80F.taxon	description	Figs 3 F, 6 F, 10 B, 13 F, 14 X	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025659277FD85E97CFD10F80F.taxon	type_taxon	Type species Trachelminthopsis terrifera Delève, 1965.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025659277FD85E97CFD10F80F.taxon	diagnosis	Differential diagnosis Trachelminthopsis is characterized by the combination of the following characters: 1) body (Figs 3 F, 10 B) elongate; 2) antennae with segments 3 – 10 filiform; segment 11 longer; 3) surface of the pronotum (Figs 3 F, 6 F, 10 B) meshy, rugose; lateral margin crenulate; anterolateral angles moderately produced; sides moderately arcuate; carinae indistinct; median groove in a form of small fovea in the middle; basal margin with sublateral oblique impressions; 4) surface of the elytra (Figs 3 F, 10 B) meshy, rugose; sides subparallel in basal 2 / 3, then tapered into rounded apex; carinae absent; intervals nearly flat, sometimes crenulate; 5) prosternum moderately long in front of procoxae; anterior margin laterally lowered and indented; prosternal process moderately wide with arrow-head apex (Fig. 13 F); 6) legs with femora stout, tarsal claws (Fig. 14 X) simple.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025659277FD85E97CFD10F80F.taxon	description	Similar genera This genus resembles Lathridelmis and Helminthopsis but differs from both in the pronotum with a groove in a form of small fovea, and in simple elytra without carinae. It can further be distinguished from Lathridelmis by its broader body shape, and from Helminthopsis by its rugose, meshy cuticle. Larva Unknown.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
0385623025659277FD85E97CFD10F80F.taxon	distribution	Distribution Known from Angola, Democratic Republic of the Congo, Gabon, Republic of the Congo. New country records for Côte d’Ivoire, Sierra Leone, Kenya and Zambia.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230256A9278FD8AEB0AFBB7FC65.taxon	description	Figs 3 F, 6 F, 10 B, 13 F, 14 X	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230256A9278FD8AEB0AFBB7FC65.taxon	materials_examined	Material examined CÔTE D’IVOIRE • 3 ex.; “ IVORY COAST, 380 m, Yeale Village, Mt Nimba, 07 ° 31 ′ 35.3 ″ N, 08 ° 25 ′ 20.1 ″ W, 18 - 29. IV. 2016, Light Trap, // Aristophanous, M., Geiser, M., Moretto, P., leg., BMNH (E) 2016 - 109, Trip Ref: CI- 003 (ANHRT 17) ”; illustrated in Figs 3 F, 6 F, 10 B, 13 F, 14 X; BMNH. DEMOCRATIC REPUBLIC OF THE CONGO • 1 ♂; “ ♂ // HOLOTYPUS // Esobe de M-Bolo // MUS. ROY. AFR. CENTR. Tshuapa: Terr. Bikoro, Mabali (à la Lumière) N. Leleup IX / X- 1959 // TYPE // Prépar. genit. N ˚ 15364.12 B // Prépar. Genit. N ˚ 15364.12 A // J. Delève det., 1964 H. (Trachelminthopsis) terrifera n. sp. ”; MRAC. SIERRA LEONE • 2 ex.; “ Sierra Leone, 80 m, Kalainkay nr. Kamabai Northern Prov. 3 - 6. xi. 15; // N 09 ° 10 ′ 52 ″; W 11 ° 56 ′ 44 ″ Light Trap, R. Goff coll. Leg. Smith. R & Takano. H, BMNH (E) 2016 - 197 ”; BMNH. ZAMBIA • 3 ex.; “ ZAMBIA, 1400 m, Hillwood, Ikelenge, 11 ° 16 ′ 02 ″, 24 ° 18 ′ 59 ″ E, 25 - 27. xi 2014, Edwards’ Trap, Smith, R., Takano, H., leg, BMNH (E) 2015 - 19 ”; BMNH.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230256A9279FDFCEEA0FDF2FDDE.taxon	description	Figs 3 G, 6 G, 10 C, 13 G, 14 Y	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230256A9279FDFCEEA0FDF2FDDE.taxon	type_taxon	Type species Tropidelmis hintoni Delève, 1964.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230256A9279FDFCEEA0FDF2FDDE.taxon	diagnosis	Differential diagnosis Tropidelmis is characterized by the combination of the following characters: 1) body (Figs 3 G, 10 C) narrow, elongate; 2) antennae with segments 3 – 10 filiform; segment 11 longer; 3) surface of the pronotum (Figs 3 G, 6 G, 10 C) moderately smooth to granulose; anterolateral angles feebly produced; sides slightly arcuate; carinae absent; median groove in a form of large fovea in the middle; 4) surface of the elytra (Figs 3 G, 10 C) smooth; sides subparallel in basal 2 / 3, then tapered into rounded apex; carinae absent; intervals nearly flat; 5) prosternum moderately short in front of procoxae, without chin piece; anterior margin without distinct indentation; prosternal process moderately narrow with rounded apex (Fig. 13 G); 6) legs with femora stout, tarsal claws (Fig. 14 Y) with one basal tooth.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230256A9279FDFCEEA0FDF2FDDE.taxon	description	Similar genera Tropidelmis is distinct from all Afrotropical genera but may superficially resemble the subgenus Paractenelmis, as both share a similar narrow, elongate body shape, a moderately short prosternum without a chin piece, and tarsal claws with an additional tooth. However, Tropidelmis differs in lacking carinae on both the pronotum and elytra. Larva Unknown.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230256A9279FDFCEEA0FDF2FDDE.taxon	distribution	Distribution Endemic to South Africa.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230256B9279FDFBE863FC4CFCBC.taxon	description	Figs 3 G, 6 G, 10 C, 13 G, 14 Y	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
03856230256B9279FDFBE863FC4CFCBC.taxon	materials_examined	Material examined SOUTH AFRICA • 18 ex.; “ C. S. I. R. - Stream Survey 128 A 30. 10. 50 // S. Africa Great Borg River French Hook Forest Reserve // Para- type // J. Delève det., 1964 Trop. hintoni n. sp. // H. E. Hinton collection. B. M. 1977 - 566. ”; illustrated in Figs 3 G, 6 G, 10 C, 13 G, 14 Y; BMNH.	en	Linský, Marek, Matsumoto, Keita (2026): Generic review and key to all Afrotropical genera of the subfamily Elminae (Coleoptera: Elmidae). European Journal of Taxonomy 1050: 1-80, DOI: 10.5852/ejt.2026.1050.3251, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3251/14385
