Xenomyia oxycera Emden, 1951

Couri, Márcia Souto, Sousa, Viviane Rodrigues De, Gomes, Marina & Gil-Azevedo, Leonardo H., 2025, The puzzling genus Xenomyia Malloch (Diptera, Muscidae): taxonomic notes, key to species and redescription of Xenomyia hirtibasis (Bigot), Zootaxa 5570 (2), pp. 260-280 : 273-276

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.

Figures

FIGURES 10–15. 10. Xenomyia hirtibasis (Bigot), head of male, lateral view; 11. Xenomyia hirtibasis (Bigot), head of female, lateral view; 12. Xenomyia osculata Pont & Werner, head of male, frontal view (modified from Fig. 1 of Pont & Werner 2003); 13. Xenomyia osculata Pont & Werner, head of female, frontal view (modified from Fig. 2 of Pont & Werner 2003); 14. Xenomyia oxycera Emden, head of male, lateral view (modified from Fig. 55 of Emden 1951); 15. Xenomyia palpalis Emden, head and thorax of female, lateral view (modified from Fig. 4 of Emden 1948). Scale bars: 1 mm. Figs 12, 13 and 15 not to scale.