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 bimaculata Stein, 1910 Fig. 8 Atherigona bimaculata Stein, 1910: 157 ; van Emden 1940: 116 , figs 6, 34; van Emden 1956: 519; Deeming 1971: 153, figs 30–32. Diagnosis: This species can be distinguished from others by the very unique setal arrangement on tergite 5 – a strongly developed seta is present on the posterior margin of each dorsal spot. Its wings have dark smoky suffusions over the humeral crossvein and Sc­R 1 . The frontal plates of the head are glossy, shining black. The hypopygial prominence is in the shape of a rounded knob. Type material examined: Lectotype ♂ [ REPUBLIC OF SEYCHELLES ]: ‘Silhouette’ 08 Seychelles Exp., Seychelles Is. , Prof J.S. Gardner , 1914-537’ ( NHMUK ). Paralectotype ♂ [ REPUBLIC OF SEYCHELLES ] ‘Fundorte. Seychelles: Ziemlich zahlreich auf silhouette VIII. 1908 und Mahé ( Morne Blanc, X. , XI. 1908 , Cascade Estate , I. 1909 )’ ( ZMHB ) . Other material examined: MALI : 1♂ Yanfolila , 9.ix–7.x.1986 , J. Durham , leg. Deeming ( NMSA ) ( Previously NMW.Z.1987–144) . SOUTH AFRICA : KwaZulu­Natal : 1♂ 15 km SE Ingwavuma , Bushy area with big trees, 21.ii.1979 , J.G.H. Londt , ex Malaise trap ( NMSA ) ; 1♂ Ndumo Game Reserve , main road, 26°54.288'S 32°17.974'E , Sand and broad-leafed deciduous forest, 4–8.xii.2009 , A.H. Kirk-Spriggs , Malaise trap ( BMSA (D) 17954) ; 1♂ Port Edward , 31°03'S 30°13'E , 8.vi.1997 , K.R. Cradock , Malaise trap ( NMSA ) ; 1♂ Ramsgate , Riverine bush, 11–20.i.1985 , J.G.H. Londt , Malaise trap ( NMSA ) ; 1♂ Ramsgate Butterfly Sanctuary , 30°53.3'S 30°20.4'E , 26–29.iv.2004 , M.B. Mostovski , light trap ( NMSA ) ; 1♂ Zululand , Ndumu [Ndumo] Game Reserve , 26.x.1972 , M.E. Irwin ( NMSA ) . Distribution: Cameroon , Congo, Democratic Republic of the Congo , Kenya , Madagascar , Mali , Mauritius , Nigeria , Rwanda , Senegal , Seychelles , South Africa (new).