Bentrovata minor, Papp, 2021

Papp, László, 2021, New Species Of Apterobiroina L. Papp And Bentrovata Richards (Diptera, Sphaeroceridae) From Australia, Acta Zoologica Academiae Scientiarum Hungaricae 67 (2), pp. 101-117 : 110

Bentrovata minor sp. n.

( Figs 30–37 )

Holotype male (gen. prep., HNHM): WESTERN AUSTRALIA, Nornalup-Walpole Nat. Pk. – 25. 1. 1979 to 6. 3. 1979, No. 1495, pit fall traps. The holotype is damaged, its fore legs and head and tibial setae are partly lost .

Body length: 1.55 mm.

All body and legs dark. Ifr lines distinct. Breadth of gena 0.06 mm behind vi, eye’s height 0.15 mm.

Abdomen. Abdominal sternites are surprisingly narrow.

Male genitalia. Generally of a Bentrovata type. Ventro-medial process of synsternite ( Figs 31–32 ) with strong, black thorns/pegs in 1 row, 16 (8+8) pegs are to be counted. Dorsal part of synsternite ( Fig. 30 ) short. Pseudocerci ( Fig. 33 ) indistinct. Hypandrium ( Fig. 36 ) Y-shaped, apodeme medium-long. Surstylus ( Figs 34–35 ) short, with only 1 strong, comparatively short ventral thorn. Distiphallus ( Fig. 37 ) medium-long and less broad than in B. flavithorax . Postgonite ( Fig. 37 ) long, slender, slightly curved, with a gently proclinate, blunt apex.

Female. Unknown.

Figures

Figs 30–37. Bentrovata minor sp. n., holotype male, terminalia and genitalia. 30 = dorsal part of synsternite, anterior view; 31 = sternite 5 and ventral part of synsternite, ventral view; 32 = ventro-medial part of synsternite, ventral view; 33 = ventral part of epandrium and subepandrial sclerite, caudal view; 34 = surstylus, lateral view; 35 = same, ventral view; 36= hypandrium, ventral view; 37 = left postgonite, phallus and phallapodeme, lateral view. Scale: 0.4 mm for Fig. 30; 0.2 mm for Figs 31, 33, 36; 0.1 mm for Figs 32, 34–35, 37