Limnebius probus, Perkins, Philip D., 2015

Perkins, Philip D., 2015, Taxonomy of the water beetle genus Limnebius Leach in southern Africa (Coleoptera: Hydraenidae), Zootaxa 3948 (1), pp. 41-59 : 45-46

publication ID

https://doi.org/ 10.11646/zootaxa.3948.1.3

publication LSID

lsid:zoobank.org:pub:0953E397-4543-4D3C-861F-415447C08179

DOI

https://doi.org/10.5281/zenodo.6101383

persistent identifier

https://treatment.plazi.org/id/37323055-853E-CA1B-5696-5C52F98B0CD8

treatment provided by

Plazi

scientific name

Limnebius probus
status

sp. nov.

Limnebius probus View in CoL , new species

Figs. 2 View FIGURES 1 – 4 (habitus), 14 (aedeagus), 28 (map)

Type material. Holotype (male): South Africa: KwaZulu-Natal Province, Zululand, Dukuduku For. Sta., air plankton, sunset, 28° 22' S, 32° 19' E, 4 iv 1974, Endrödy-Younga (#323) ( TMSA). Paratypes (297): South Africa: KwaZulu-Natal Province, Ndumu Game Reserve, shore washing, fresh water, 26° 53' S, 32° 16' E, 12 vi 1989, Endrödy-Younga & Klimaszewski (#2612) (209 TMSA); Ndumu Game Reserve, shore washing, salty water, 26° 54' S, 32° 16' E, 12 vi 1989, Endrödy-Younga & Klimaszewski (#2613) (52 TMSA); Zululand, Dukuduku For. Sta., air plankton, sunset, 28° 22' S, 32° 19' E, 4 iv 1974, Endrödy-Younga (#323) (36 TMSA).

Differential diagnosis. Habitus as illustrated ( Fig. 2 View FIGURES 1 – 4 ); a small species with body form distinctly drop-shaped, apically distinctly acuminate, pronotal disc non-microreticulate, elytra weakly microreticulate. The aedeagus ( Fig. 14) is long and slender; distal ½ slightly arcuate in ventral view, bearing two rows of setae, this area slightly widened and internally with the capsule; apex slightly, rectangularly produced.

Description. Size: holotype (length/width, mm): body (length to elytral apices) 0.90/0.51; pronotum 0.24/ 0.51; elytra 0.53/0.50; approximate height, lateral view 0.37. Dorsum brown to dark brown, head and pronotum usually darker than elytra. Body form distinctly drop-shaped, apically distinctly acuminate, side margin very weakly indented where pronotum joins elytra. Pronotum with disc shining, non-microreticulate, very sparsely finely punctulate, each puncture with very short, very fine, indistinct adpressed seta; area posterior to eye (side view) with field of distinctly larger punctures, each puncture with adpressed seta, longer than setae on disc. Elytra very weakly microreticulate, almost obsolete, with punctures and setae similar to those on pronotum. Males with first three pro- and mesotarsal segments slightly enlarged, with adhesive setae. Labroclypeal suture bisinuate in frontal view in both sexes. Labrum of male with anterior margin slightly thickened over median ½, lateral area on each side excavate; labrum of female simple. Elytral apices slightly more widely rounded in males than in females; apical and sutural margin forming a more acute angle in females.

Etymology. Named in reference to the long, probe-like aedeagus.

Distribution. Currently known from two localities in KwaZulu-Natal Province ( Fig. 28 View FIGURES 28 – 31 ).

TMSA

Transvaal Museum

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Hydraenidae

Genus

Limnebius

GBIF Dataset (for parent article) Darwin Core Archive (for parent article) View in SIBiLS Plain XML RDF