Xenomyia oxycera Emden, 1951
Diagnosis. (modified from Emden 1951). Length: 5.6–6.5 mm. (Fig. 14, modified from Fig. 55 of Emden 1951). Ocellar absent; fronto-orbital plate much broader than frontal vitta, densely covered by short setulae; postpedicel produced and acuminate; proboscis slender and glossy black; antenna brown; palpus dark yellow, long and slender; prosternum bare; superior frontal seta absent; acrostichals present; dorsocentrals 1:2; katepisternals 1:2; presutural intra-alar seta present. Anepimeron bare. Fore tibia without median seta. Hind tibia with an anterodorsal and posterodorsal setae. Claws moderately long, not longer than antenna. Wing smoky. Calypter and halter yellow.
Note. Described from male and female from Uganda, Jinja. This species is well known as a predator of black flies in West Africa (Pont & Werner 2003). Holotype deposited at NHMUK.