Matskási István (szerk.): A Magyar Természettudományi Múzeum évkönyve 81. (Budapest 1989)
Papp, L.: A review of the Afrotropical species of Poecilosomella Duda (Diptera, Sphaeroceridae)
10 (11) Dimorphic species, incl. brachypterous forms (? subspecies). Head and pleurae orange or mostly so. Smaller, 1.3-1.9 (2.0) mm multicolor (RICHARDS) 11(10) Fully winged species. Head and pleurae darker, or, at least with some distinct dark markings. Bigger, 2.0-2.2 mm pictitarsis (RICHARDS) 12 (7) Alar plane unicolourous, or diffuse brown spots presen over the base of Ä2+3and Ä4+5and apices of the radial veins 13 (14) Mesonotum brilliantly shining, frons, face, cheeks and gena light and shining yellow. Only 1 ors . Second costal section shorter than third. Fore tarsi yellow (lusingana -group) lusingana (VANSCHUYTBROECK) 14 (13) Mesonotum dusted, largely dark with silvery pattern. Frons mostly dusted 15 (20) Hind tibia black or dark brown (pallidimana -group) 16 (17) Fore basitarsus and tarsomeres 2-3 whitish yellow, 4th tarsomere slightly fuscous at apex, 5th tarsomere black dorsally and fuscous ventrally. Wings infuscated with paler areas, like in pallidimana (Madagascar, not seen) perinetica (HACKMAN) 17 (16) Fore basitarsus dark, at least at base, fore tarsi otherwise white. 18 (19) Wings clear, hyaline hyalipennis (HACKMAN) 19 (18) Wings infuscated with paler areas pallidimana (DUDA) 20 (15)Hind tibia bicolourous, i.e. dark with pale rings (angulata-group) 21 (22) Fore first tarsomere mostly dark brown. Female cerci yellow. R4 +5 and costal vein delineate an area similar to a blade of a knife, apex of R2+3 without vein appendage. Smaller, 2.2-3.9 mm angulata (THOMPSON) 22 (21) All fore first tarsomere light. Female cerci usually darker. R4 +5 more strongly sinuate, apex of R2+3 with or without a vein appendage. Bigger species, 2.7-5.0 mm. 23 (24) Only 1 reclinate and slightly inclina te ors. Male mid tibia and mid first tarsomere with very long pale hairs, tibia without strong perpendicular bristles, ventroapical comparatively thin, parallel with tarsomere. Male fore tarsus with hairs shorter than the diameter of tarsomeres. Wing with or (in smaller specimens) without an extra crossvein between costa aÄ2+3, latter angulatelybent into costa and with a vein appendage (rarely missing). R4+5 strongly sinuously bent. No long anterior bristles on male mid tibia or only one such bristle. Female frons shining yellow in its medial half (in a wide stripe to lunule) mirabilis VANSCHUYTBROECK 24 (23)Two ors: anterior pair exclinate and slightly proclinate, posterior pair reclinate. Male mid tibia with perpendicular stiff bristles ventrally but hairs not much longer than tibial diameter, ventroapical thicker. Fore tarsus with long hairs on posterior surface (much longer than the diameter of tarsomeres). Wing always without an extra crossvein between costa and R2+3, latter more or less parallel with costa and perpendicularly bent into costal
