Coenosia translucida (Emden, 1940)

(Figs 26–28)

Diagnosis. Small species (3.5 mm); scutum brown; postpronotum and notopleuron with grey pollinosity; pleura grey pollinose; abdominal segment 1+2 and base of segment 3 brownish-yellow translucent; frons black with some silver reflexions from certain angles; palpus light brown; fore coxa yellow, legs brownish-yellow, mid and hind femora with a brown mark on apical third of dorsal surface; wing infuscated; the narrowest point of fronto-facial stripe below the base of the antenna; frons widened towards vertex; arista almost bare; scutellum with both pairs of setae present and long, and with setulae on disc; anterior katepisternal short, posterior one long; haltere yellow; lower calypter about 2.5 times as long as upper one; fore tibia with a very long posteroventral seta; hind tibia with one anterior and one anterodorsal inserted at almost the same level, the anterior one shorter; sternite 5 with 4 long setae on each inner margin (Fig. 26).

Male terminalia. Cercal plate larger at basal half as in Fig. 27. Aedeagal complex as in Fig. 28.

Material examined. ANGOLA: (A40), Tundavala, 8–10 mls. NW. Sa da Bandeira, 27–29.iii. 1972 / Southern African Exp., B.M.1972-1, 3 males (1 MNRJ), 5 females (1 MNRJ); (A30), Tundavala, 7 mls. W. Gabela, 16–18.iii. 1972 / Southern African Exp., B.M.1972-1, 1 male, 1 female; (A26), Salazar. I.I.A.A., 9–15.iii. 1972 / Southern African Exp., B.M.1972-1, 1 female.

Notes. This species belongs to the C. rebmanni -group.

Geographical distribution. Uganda, Nigeria, Democratic Republic of Congo, Angola.