Illustrated key and systematics of male South African Atherigona s. str. (Diptera: Muscidae) Author Muller, B. S. text African Invertebrates 2015 2015-12-31 56 3 845 845 http://www.bioone.org/doi/10.5733/afin.056.0301 journal article 10.5733/afin.056.0301 2305-2562 7915060 Atherigona occidentalis Deeming, 1971 Fig. 32 Atherigona occidentalis Deeming, 1971: 177 , figs 132, 133; Deeming 1979: 49, figs 53–55. Diagnosis: This species can be distinguished from others with the frontal vitta, palpi and antennae infuscated by its tridentate hypopygial prominence and Y-shaped median piece of the infuscated trifoliate process. Type material examined: Holotype ♂ : ‘NORTHERN NIGERIA [ NIGERIA ]: Zaria , Samaru , 26.ix.1968 , J.C. Deeming , m.v. [ Mercury vapour] trap, det Deeming 1969’ ( NMWC ). Other material examined: BOTSWANA : 1♂ Tsessebe, Bechuanaland, i.1956 , F. Zumpt ( NHMUK ) . BURKINA FASO : 1♂ Matourkou, on Sorghum shoots, vii–viii.1987 , J. Zongo , leg. J.C. Deeming ( NMSA ) (Previously NMW.Z.1988–092) . Distribution: Botswana (new), Burkina Faso , Cameroon , Mali , Nigeria , South Africa .