Bothynus fabius (Faimaire, 1878)

Duarte, Paulo R. M., Dupuis, Fabien & Grossi, Paschoal C., 2025, Taxonomic revision of the Bothynus ascanius (Kirby, 1819) (Coleoptera: Melolonthidae: Dynastinae) species group, Journal of Natural History 59 (9 - 12), pp. 663-737 : 727-728

publication ID	https://doi.org/10.1080/00222933.2025.2456579
DOI	https://doi.org/10.5281/zenodo.14983088
persistent identifier	https://treatment.plazi.org/id/1F1B3034-F630-000C-DB65-8509FCAD96E8
treatment provided by	Plazi (2025-03-05 08:18:44, last updated 2025-03-06 16:32:22)
scientific name	Bothynus fabius (Faimaire, 1878)
status

Treatment

Bothynus fabius (Faimaire, 1878) View in CoL , here revalidated

( Figures 2 View Figure 2 (j), 4(e), 5(e,g), 11(l), 12(f), 13q, 14q, 16(f), 18(e), 19(b,d), 21(d), 24)

Scaptophilus fabius View in CoL . Fairmaire 1878: 264 (original combination)

Scaptophilus striatellus Fairmaire 1878: 264 View in CoL (original combination)

Scaptophilus quadratus Fairmaire 1878: 265 View in CoL (original combination)

Bothynus fabius View in CoL . Arrow 1937b: 40 (catalogue, as new combination); Blackwelder 1944: 255 (checklist, distributional information); Endrödi 1969: 108 (remarks), 112 (lectotype designation, synonymy proposition)

Bothynus striatellus View in CoL (here synonymised). Arrow 1937b: 41 (catalogue, as new combination); Blackwelder 1944: 255 (checklist, distributional information); Endrödi 1969: 108 (remarks), 112 (identification key), 116 (illustration of the aedeagus [figs. 158–159]), 131–132 (redescription, lectotype designation, distribution); Endrödi 1985: 274 (illustration of the aedeagus [figs. 1112–1123], identification key, distribution); Krajcik 2005: 39 (checklist); Abadie et al. 2008, pl. 14 ( Figure 7 View Figure 7 , distribution); López-García et al. 2016: 497 (checklist, distribution).

Bothynus quadratus View in CoL . Arrow 1937b: 41 (as new combination); Blackwelder 1944: 255 (checklist, distributional information); Endrödi 1969: 108 (synonymy proposition).

Diagnosis

Bothynus fabius resembles B. deiphobus in the inner protarsal claw of male simple, equal to outer claw, without incision or ventromedial process, glabrous and deep-striated elytra, and parameres without ventrobasal carina. However, B. fabius is distinguished from B. deiphobus by the following characters: Hemisternite separated by a partial or complete longitudinal midline, never entire fused ( Figure 12 View Figure 12 (f)); metatarsomere 1 with short outer apex in both sexes ( Figure 18 View Figure 18 (e)); anterior half of tergite 7 with 1 band of well-marked stridulatory striae in both sexes ( Figure 19 View Figure 19 (b)); females bearing a cavity on each side of tergite 8 ( Figure 19 View Figure 19 (d)).

Type material

Bothynus striatellus . Lectotype female, labelled: (a) ‘ Bothynus striatellus /Entrerios Fairm. Type’. [handwritten]; (b) ‘Museum Paris/ex Coll./R.Oberthur’ [light green label, bordered in black]; (c) ‘ Lectotypus /Both (Scaptoph)/striatellus/Fairm/Endrödi’ [label bordered in red, partly handwritten]; (d) ‘MNHN/EC7110’ ( MNHN) ( Figure 2 View Figure 2 (j)). Paralectotype male, labelled: (a) ‘EntreRios/Dohrm’ [handwritten]; (b) ‘Scapth./striatellus/Fairm./Plata’ [handwritten]; (c) ‘MUSEUM PARIS/Collection Léon Fairmaire/1906’; (d) ‘ Paratypus /Both. (Scaptoph)/striatellus/Fairm’. [label bordered in red, partly handwritten]; (e) ‘PARALECTOTYPE’ [red label”; (c) ‘MNHN/EC7111’ ( MNHN). Bothynus fabius . Lectotype male, labelled: (a) ‘ Scaptophilus /fabius/Farm/am.mer’. [handwritten]; (b) ‘MUSEUM PARIS/ Collection Léon Fairmaire/1906’ [light green label]; (c) ‘TYPE’ [red label]; (d) ‘ Lectotypus / Bothynus (Scapt.) / fabius Fairm /Endrödi’ [label bordered in red, partly handwritten]; (e) ‘penis/default!!’ [handwritten]; (f) ‘MNHN/EC7112’ ( MNHN).

References

Abadie EI, Grossi PC, Wagner PS. 2008. A field guide of the Dynastidae family of the south of South America. Buenos Aires: Design & Digital edition Javier Canete.

Arrow GJ. 1937 b. Coleopterorum Catalogus, pars 156. Scarabaeidae: Dynastinae. W. Junk.

Blackwelder RE. 1944. Checklist of the coleopterous insects of Mexico, Central America, West Indies, and South America, part II. Bull U S Natl Mus. 185: 189-341.

Endrodi S. 1969. Monographie der Dynastinae. 4. Tribus: pentodontini (Coleoptera, Lamellicornia). Entomologische Abhandlungen, Staatliches Museum fur Tierkunde in Dresden. 37: 1-145.

Endrodi S. 1985. The Dynastinae of the world. La Haye, Netherlands: W. Junk.

Fairmaire L. 1878. Description de coleopteres nouveaux d'Amerique. Revue et Magasin de Zoologie Pure et Appliquee, Series. 3 (6): 260-270.

Krajcik M. 2005. Dynastinae of the world: checklist (Coleoptera: Scarabaeidae: Dynastinae). Animma X. 2 (Supplement 2): 1-122.

Lopez-Garcia MM, Gasca-Alvarez HJ, Cave RD, Amat-Garcia G. 2016. An annotated checklist of the new world Pentodontini scarab beetles (Coleoptera: Scarabaeidae: Dynastinae: Pentodontini). Zootaxa. 4170 (3): 491-509. doi:10.11646/zootaxa.4170.3.4.

Figures

Figure 2. Types,with their respective labels on the right: (a) Bothynus ascanius (Kirby,1819); (b) Bothynus cribrarius (Fairmaire, 1878); (c) Bothynus cyclops (Burmeister, 1847); (d) Bothynus cylindricus Arrow, 1937; (e) Bothynus deiphobus (Burmeister, 1847); (f) Bothynus laevipennis Arrow, 1937; (g) Bothynus laticifex Burmeister, 1847; (h) Bothynus minor Steinheil, 1872; (i) Bothynus nyx Ratcliffe, 2010; (j) Bothynus fabius (Fairmaire, 1878); (k) Bothynus thrix Hardy, 2017.

Figure 7. Ventral view of left maxilla: (a) Bothynus arriagadae sp. n; (b) Bothynus ascanius; (c) Bothynus ovalatus sp. n.; (d) Bothynus sapukai sp. n. gl = galea.

Figure 12. Spiculum gastrale: (a) Bothynus ascanius; (b) Bothynus cyclops; (c) Bothynus cylindricus; (d) Bothynus deiphobus; (e) Bothynus laevipennis; (f) Bothynus fabius. hs = hemisternite.

Figure 18. Ventral view of the meso- and metafemurs (a–c), metatibia and associated tarsi (d, e): (a) Bothynus ascanius; (b) Bothynus cribrarius; (c) Bothynus cylindricus; (d) Bothynus deiphobus (black arrow points to the elongated outer apex of the first tarsomere); (e) Bothynus fabius. msf = mesofemur, mtf = metafemur.

Figure 19. Stridulatory striae on tergite 7 (a, b), tergite 8 of females in dorsal (c, d) and caudal views (e–l), respectively: (a, c) Bothynus deiphobus; (b, d) Bothynus fabius (black arrows point to the lateral excavations); (e) Bothynus ascanius; (f) Bothynus bentoi sp. n.; (g) Bothynus cyclops; (h) Bothynus gisae sp. n.; (i) Bothynus laticifex; (j) Bothynus ovalatus sp. n.; (k) Bothynus rufipennis sp. n.; (l) Bothynus sapukai sp. n.