Coenosia macrochaeta ( Emden, 1940 )

Couri, Marcia S. & Pont, Adrian C., 2016, Coenosia Meigen (Diptera: Muscidae) from Angola: new species and records, Zootaxa 4103 (6), pp. 501-512 : 507

Coenosia macrochaeta ( Emden, 1940)

( Figs 10–12 )

Diagnosis. General colour brown; postpronotum grey dusted; frons velvety dark; face and parafacial silver; frons subparallel in its middle part, diverging towards vertex, uniformly dusted; postpedicel short, about 1.6 times the length of pedicel; arista with short hairs only on basal half; palpus brown; haltere yellow; scutellum with four strong setae and without setulae on disc; anterior katepisternal short, median seta about half the length of the long posterior seta; upper calypter very short, lower calypter about 2.8 the length of the upper one, strongly projecting beyond it; legs entirely black; hind tibia with an anterior and a very longanterodorsal seta; sternite 5 as in Fig. 10 . Male terminalia. Cercal plate and surstylus as in Fig. 11 ; surstylus with seta at apex. Aedeagal complex as in Fig. 12 .

Material examined. ANGOLA: (A6), Tundavala, 9 mls. NW. Sa da Bandeira, 23.ii. 1972 / Southern African Exp., B.M.1972-1, 1 male, 1 female.

Notes. This species is included in the C. niveifrons -group. The unusually long anterodorsal and posterodorsal setae on hind tibia are very characteristic of this species.

Geographical distribution. Uganda, Burundi, Angola.

Figures

FIGURES 10 – 18. (10 – 12) Coenosia macrochaeta (Emden), male: (10) sternite 5, dorsal view; (11) cercal plate and surstyli, dorsal view; (12) aedeagal complex, lateral view. (13 – 15) Coenosia nodosa Stein, male: (13) sternite 5, dorsal view; (14) cercal plate, dorsal view; (15) aedeagal complex, lateral view. (16 – 18) Coenosia ochroprocta (Speiser), male: (16) sternite 5, dorsal view; (17) cercal plate, dorsal view; (18) aedeagal complex, lateral view.