Bentrovata flavithorax, 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 flavithorax sp. n.

( Figs 21–29 )

Holotype male ( HNHM): WESTERN AUSTRALIA, Gully Rd., Nornalup-Walpole Nat. Pk. – 25. 1. 1979 to 6. 3. 1979, No. 1496, pitfall traps .

Paratypes ( HNHM, 2 m, 3 f in AM): 5 males 8 females (1 m 1 f gen. prep.): same as for the holotype; 3 males 6 females ( HNHM): ibid., Nornalup-Walpole Nat. Pk., No. 1495; 1 female ( HNHM): ibid., Treen Brook S. F., No. 1492 .

Body length (mm): 1.58 (holotype), 1.66–1.81 (paratypes).

Frons without longitudinal stripes. Thorax contrastingly yellow.

Male genitalia. Larger blunt black thorns/pegs of ventro-medial process of synsternite are unarranged ( Figs 21–22 ). Dorsal part of synsternite short ( Fig. 24 ). Pseudocerci large ( Fig. 23 ). Hypandrium Y-shaped, with long apodeme ( Fig. 25 ). Surstylus ( Fig. 26 ) short, with an extremely large black thorn ventrally. Distiphallus ( Fig. 27 ) rather short; postgonite long and narrow, with a proclinate, nearly sharp apex.

Female genitalia. Abdomen at broadest 0.60 mm. Length of tergites 3–5 (mm): 0.225, 0.36, 0.225. Length/width of sternites 3–6 (mm): 0.12×0.67, 0.17×0.68, 0.12×0.66, 0.09×0.41. Epiproct membranous, without setae ( Fig. 29 ). Spermathecae long ovoid ( Fig. 28 ), neck of spermathecae without warts.

Figures

Figs 21–29. Bentrovata flavithorax sp. n., male and female paratypes, postabdomen and genitalia. 21–27: male: 21 = sternite 5 and ventral part of synsternite, ventral view; 22 = ventromedial part of synsternite, ventral view; 23 = pseudocerci and subepandrial sclerite, caudal view; 24 = synsternite, anterior view; 25 = hypandrium, ventral view; 26 = surstylus, broadest (sublateral-subventral) view; 27 = postgonite, phallus and phallapodeme, lateral view. 28–29: female: 28 = spermathecae; 29 = cerci, dorsal view. Scale: 0.4 mm for Fig. 24; 0.2 mm for Fig. 21; 0.1 mm for Figs 22–23, 25–29