New Species Of Apterobiroina L. Papp And Bentrovata Richards (Diptera, Sphaeroceridae) From Australia Author Papp, László text Acta Zoologica Academiae Scientiarum Hungaricae 2021 2021-05-19 67 2 101 117 http://dx.doi.org/10.17109/azh.67.2.101.2021 journal article 6094 10.17109/AZH.67.2.101.2021 653336f0-4ebd-4b90-96c8-8b8b68109fc8 4946023 Apterobiroina L. Papp, 1979 Apterobiroina L. Papp, 1979: 370 . Type species: Apterobiroina australis L. Papp, 1979: 371 . The extended description of the genus is given below. Head . Head wide with small but distinct ocelli, gena wide. Frons without silvery stripes, i.e. unicolourous. Head setae uneven: oc seta long, vti long and thick, vte minute, 2 latero-clinate ors and 4 pairs of ifr present. Vibrissa strong and long, pm setae weak, no strong genal seta. Thorax . In dorsal view, very wide dorsal to mid coxae. Posterior part of mesothorax and whole metathorax are with a deep, subcylindrical vertical emargination ( Papp 1979 : fig. 9), which embraces mid and hind femora when at rest. Thoracic chaetotaxy: 1 ppnt , 2 np , and 1 pair each of prsut, sa , small pa and dc setae. 1 pair of thin kepst . Scutellum very short (about 3 times broader than long), with 2 pairs of strong sc setae. Acrostichals short and numerous. All species are wingless, and only A. australis and A. flavipes have halteres, those are small. Legs . Short and more or less thickened. Mid tibia with a strong va , no mid ventral seta. Antero-dorsal and postero-dorsal setae are paired at basal 1/3 and at about apical 4/5. Hind tibia without dorsal preapical seta. Figs 1–6. Apterobiroina australis L. Papp , paratype male, terminalia. 1 = sternite 5 and ventral part of synsternite, ventral view; 2 = ventro-medial part of synsternite; 3 = subepandrial sclerite, broadest view; 4 = surstylus, broadest (sublateral-subventral) view; 5 = genital complex (without distiphallus), ventral view; 6 = same, lateral view. Scale: 0.2 mm for Figs 1, 5–6; 0.1 mm for Figs 2–4 Abdomen . Barrel-shaped, in males only slightly shorter than head and thorax combined. Preabdominal tergites and sternites extremely strongly developed (sclerotised) and meet laterally. Both males and females with 5 visible preabdominal segments (tergites and sternites). Tergites covered by dense thin, and moderately long microchaetae. Articulation of abdomen to thorax is comparatively broad. Male genitalia ( Figs 1–15 ). See in the above key. Female genitalia . Tergites 6–9 wholly membranous. Epiproct weakly sclerotised with a pair of dorsal setulae ( Figs 16, 18 ). Cerci longer with longer setae ( Figs 16–18 ); its apical seta about 0.05 mm . Hypoproct U-shaped, very thin. Sclerotised duct of paired spermathecae comparatively short, duct of single spermatheca also comparatively long. Spermathecae better sclerotised and with a large bulb on initial section of duct ( Figs 19–20 ).