Limnebius angulatus Perkins 2017, new species

Limnebius angulatus, new species

Figs. 148 (habitus), 158 (aedeagus), 296 (map)

Type Material. Holotype (male): Fianarantsoa, Namorona River, 7 km W Ranomafana, flight intercept-yellow pan trap in malaise trap in small clearing, montane rainforest, elev. 1100 m, 21° 15' S, 47° 25' E, 22–31 x 1988, W. E. Steiner (USNM).

Differential Diagnosis. Habitus as in Fig. 148; a moderately convex species, only slightly teardrop-shaped and of average length (ca. 0.93 mm). The dorsal adpressed setae are longer than in most species. The aedeagus (Fig. 158) in lateral view is unique in being distinctively rather abruptly angled at about the distal 2/3 of the main piece.

Description. Size: holotype (length/width, mm): body (length to elytral apices) 0.93/0.52; head width 0.36; pronotum 0.20/0.52; elytra 0.60/0.52; approximate height, lateral view 0.33. Dorsum dark brown. Body form weakly tear-drop shaped. Pronotum with disc weakly shining, very finely effacedly microreticulate, very sparsely finely punctulate, most punctures with moderately long adpressed seta; area posterior to eye (side view) with slightly larger punctures. Elytra very weakly effacedly microreticulate, with punctures and setae similar to those on pronotum.

Males with first three pro- and mesotarsal segments slightly enlarged, with adhesive setae. Labrum simple..Elytral apices truncate.

Etymology. Named in reference to the angulate aedeagus.