Coenosia alba ( Emden, 1940: 206 )

Couri, Márcia & Pont, Adrian, 2016, Species of Coenosia Meigen (Diptera, Muscidae) described by Fritz van Emden from the British Museum Ruwenzori Expedition of 1934 – 1935, Zootaxa 4144 (4), pp. 529-555 : 531

Coenosia alba ( Emden, 1940: 206)

( Figs 44–46 )

Holotype male seen; in good condition.

Diagnosis. General colour uniformly silver-grey pollinose, scutum and abdomen with no marks; palpus brown; legs yellow, except for dorsal apical third of fore femur and dorsal apical fourth of mid and hind femora; arista with short hairs on basal half and bare on apical half; scutellum with both pairs of setae long and with setulae on disc; anterior katepisternal seta very short; lower calypter about 2.5 times as long as the upper one; haltere yellow; fore tibia with a long median posteroventral seta; hind tibia with one anterior and one anterodorsal, the anterior a little basad; abdomen with four long setae on tergite 5; sternite 5 as in Fig. 44 .

Male terminalia. Cercal plate and surstylus as in Fig. 45 . Aedeagal complex as in Fig. 46 .

Notes. Included in the calopoda group. One paratype male was dissected and illustrated.

Figures

FIGURES 41 – 52. Sternite 5; cercal plate and surstyli in dorsal view; epandrium, cercal plate, surstylus and aedeagus in lateral view: 41 – 43. Coenosia aequivitta (Emden). 44 – 46. Coenosia alba (Emden). 47 – 49. Coenosia albisquama (Emden). 50 – 52. Coenosia argentescens (Emden).