Poecilosomella, DUDA, 1920

Papp, L., 2010, Seven New Afrotropical Species Of Poecilosomella Duda (Diptera: Sphaeroceridae), Acta Zoologica Academiae Scientiarum Hungaricae 56 (1), pp. 9-41 : 10-11

Poecilosomella pallidimana species group

Genal seta distinct. Fore tarsi white, only fore basitarsus is – at least partly – black. Hind tibia black or dark brown, i.e. without pale rings. Wings patterned. False vein from cubital vein seems to close a cubital cell. Costal vein terminates at conjunction with R 4+5, or slightly beyond it. Male sternite 5 with a large mediocaudal hairy process, which may bear thicker setae caudally ( Fig. 9 ). Subepandrial sclerite high. Apical half of surstylus in 2 lobes, caudal lobe (process) long and rather thin with a comparatively small apical thorn. Postgonite rather long, broadened at its middle ( Figs 7 , 13 ).

Contrarily to my former grouping ( PAPP 1990), P. hyalipennis HACKMAN, 1965 does not belong to this group (cf. Figs 52–57 ).

Figures

Figs 9–14. Poecilosomella pallidimana (DUDA), male postabdomen and genitalia. 9 = sternite 5, ventral view (outset: medial lobe in higher magnification), 10 = epandrium with modified cerci, subepandrial sclerite, anal plates and surstyli, subcaudal view, perpendicular to cerci (most of the epandrial setae omitted), 11 = surstylus in broadest extension, 12 = same, caudal process in higher magnification, 13 = postgonite, in broadest (sublateral) view, 14 = basiphallus, lateral view. Scales: 0.2 mm for Figs 9–11, 0.1 mm for Figs 12–14

Figs 5–8. Poecilosomella additionalis sp. n., paratype male, genitalia.5 = surstylus in broadest extension, 6 = same, caudal process in higher magnification, 7 = postgonite, in broadest (sublateral) view, 8 = basiphallus, lateral view. Scales: 0.2 mm for Fig. 5, 0.1 mm for Figs 6–8

Figs 52–57. Poecilosomella hyalipennis HACKMAN, male postabdomen and genitalia.52 = outlineof sternite 5 in ventral view and medio-caudal part of the sternite in higher magnification, 53 = epandrium with cerci, surstyli and subepandrial sclerite, caudal view, 54 = surstylus in its broadest extension (a sublateral view), 55 = postgonite, in broadest view, 56 = same, caudal view, 57 = apical thread-like process of phallus with contours of distiphallus. Scales: 0.2 mm for Figs 52–53, 0.1 mm