Coenosia kilembana ( Emden, 1940: 216 )

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 : 538

Coenosia kilembana ( Emden, 1940: 216)

( Figs 104–106 , as C. rebmanni ) (junior synonym of C. rebmanni Speiser, 1924 , syn. nov.)

Holotype male seen; in good condition.

Diagnosis. General colour brown with grey pollinosity; scutum brown; postpronotum and pleura grey dusted; frons dark, fronto-orbital plate weakly grey pollinose; face, parafacial and gena silver from certain angles; palpus light brown; fore coxa yellow or partially infuscated, mid and hind coxae partially grey pollinose; femora yellow on basal two-thirds, remainder of legs brown; the narrowest point of the fronto-facial stripe below the base of the antenna; antennae inserted at dorsal third of eye; postpedicel long, about six times the length of pedicel; arista short-haired, bare on apical third; scutellum with both pairs of setae present and long, with setulae on disc; anterior and lower katepisternals about two-thirds the length of the long posterior seta; haltere yellow; lower calypter about 2.5 times as long as upper one; fore tibia with a very long posteroventral seta; hind tarsomeres 1–3 moderately to distinctly compressed; hind tibia with one anterior and one long anterodorsal inserted at almost the same level, the anterior one much shorter; sternite 5 as in Fig. 104 .

Male terminalia. Cercal plate and surstylus as in Fig. 105 . Aedeagal complex as in Fig. 106 .

Notes. Included in the rebmanni group. Emden (1940) stated that there are probably only two valid species in this “group”— C. translucida ( Emden, 1940) and C. rebmanni – and that the other species are probably subspecies of C. rebmanni . Pont (1980) considered this species as a subspecies of C. rebmanni . We dissected a male paratype of C. kilembana and a male of C. rebmanni and the terminalia are exactly the same. On the other hand, other species of this group that we dissected ( C. ciliventris and C. translucida ) have very characteristic terminalia. We are proposing the new synonymy of C. kilembana with C. rebmanni , syn. nov.

Figures

FIGURES 101 – 112. Sternite 5; cercal plate and surstyli in dorsal view; epandrium, cercal plate, surstylus and aedeagus in lateral view: 101 – 103. Coenosia niveifrons Stein. 104 – 106. Coenosia ruwenzorica Speiser. (syn: Coenosia kilembana syn. nov.). 107 – 109. Coenosia morio (Emden). 110 – 112. Coenosia somereni (Emden).