Matskási István (szerk.): A Magyar Természettudományi Múzeum évkönyve 81. (Budapest 1989)
Papp, L.: A review of the Afrotropical species of Poecilosomella Duda (Diptera, Sphaeroceridae)
Holotype male (IRSN): 1/ Mateba (ne), 3-VI-1949, P. Vanschuytbroeck; 21 P. Vanschuytbroeck det., 1950, „Poecilosomella niveipes d nsp."; 3/ [fleshy] TYPE; 4/ cf. Bull. Inst. Sei. Nat. Beige, „T. XXVI., n° 23, 1950, p. 17"; 5/R.I.ScNat. Belg., I.G. 17315; nicety preserved. Paratypes 2 9 (IRSN, HNHM): 1/ Borna -Km. 31 versTshela, 3-VI-1948, P. Vanschuytbroeck; 21 P. Vanschuytbroeck"; 3/ [red] Paratype; 4/ cf. Bull. Inst. Sc. Nat. Belg-, T. XXVI, n° 25,1950, p. 17; 2d (IRSN, HNHM): 1/Tshikay, 21-V-1948, P. Vanschuytbroeck; labels 24 as above; 1 9 (IRSN): 1/Lukula, 19-24-VII1948, P. Vanschuytbroeck; labels 2-4 as above; one of the Tshikay males without right wing and right middle leg, Lukula female with right wing damaged. Distribution: „Kenya; South Africa" (RICHARDS 1980: 621), Zaire (published for niveipes). This is a very characteristic species; body characteristics are summarized in the key but there are unique features also in male genitalia. The abdominal sterna 3 and 4 wider than terga 3 and 4 (Fig. 23) marginal and particularly lateromarginal bristles straight, long and rather thick. The male S5 bears extremely long bristles (Fig 24), gonostylus (Figs 25,26) is very large, bilobed with large lateral lobe, medial lobe is digitiform with a blunt tooth apically; gonostyli are not entirely symmetrical (Fig 27, vs. Fig. 26); aedeagal complex with a small ejaculatory apodeme (Fig. 28), aedeagal apodeme and hypandrium are rather short, distiphallus with a forked, soft dorsal process and an upcurving ventral process; postgonite short and much characteristic (Fig. 28, cf. Figs 20,4,7,15). KEY TO THE AFROTROPICAL POECILOSOMELLA SPECIES 1 (6) Costal vein produced beyond conjointment with R4+5 on a section longer than four times R4+5 width. Fore first tarsomere never white, tarsomeres 1 -3 yellow, 4-5 dark brown (longecostata -group) 2 (3) Second costal section longer to much longer than third (ratio: 1.06 to 1.42). Terminal curvature of R2+ 3 usually with a vein appendage. 5 ifr capensis sp. n. 3 (2) Second costal section shorter or only slighty longer than third (ratio: 0.845 to 1.025). Terminal curvature of R2 +3without a vein appendage 4 (5) Five interfrontal pairs. Second costal section equal with third or slightly longer. Intracrossvein section of M slightly shorter or equal with hind crossvein. Smaller, 1.85-2.33 mm longecostata (DUDA) 5 (4) Three (rarely 4) pairs of interfrontals. Second costal section shorter than third. Intracrossvein section of M usually longer than hind crossvein. Bigger, 1.90-2.92 mm arnaudi sp. n. 6 (1) Costal vein terminates at conjointment with R4+5, or if extends a little beyond it, this is at most twice the width of R4+5. Colour of fore tarsi diverse, first tarsomere white in several species 7(12) Wings with marbly dark and light colours (giraffa-group) 8(9) Fore tarsomeres not white. Bigger, 2.3-2.6 mm giraffa (RICHARDS) 9 (8) Fore tarsomeres 2-5 white, basitarsus (1st tarsomere) dark (P. pallidimana may run here but its fore basitarsus is at least partly white)
