Coenosia praeacuta namwambae (Emden, 1940: 232)

Holotype male seen; in good condition.

Diagnosis. General colour brown; scutum and abdomen uniformly brown, with no markings; face, frons and parafacial strongly silver, and frons slightly widened towards vertex; postpedicel brown; wing strongly infuscated; ocellar setae absent; legs entirely dark brown; scutellum with four strong setae and with setulae on disc; anterior katepisternal short, lower one about half the length of the long posterior one; upper calypter short, lower calypter about twice the length of the upper one and strongly projecting beyond it; haltere with knob brown; hind tibia with an anterior and an anterodorsal seta inserted at the same level.

Notes. Included in the niveifrons group. Emden (1940) described namwambae as a subspecies of C. praecuta Stein, 1913, mainly based on the colour of the scutum which is silvery dusted in C. praeacuta . Unfortunately we have no material available for dissection to elucidate the status of these two taxa.