The Snail-killing Flies (Diptera: Sciomyzidae) of West Africa Author Knutson, Lloyd V. Author Deeming, John C. Author Ebejer, Martin J. text Zootaxa 2018 2018-09-20 4483 1 67 100 journal article 29552 10.11646/zootaxa.4483.1.3 48be31ab-c94e-4044-bc82-751bd71fe938 1175-5326 1436632 85962DD1-E874-4273-8B1A-FB45A7B965A3 Sepedonella nana Verbeke, 1950 (Figs 28, plate 8d ) References to figures: Verbeke, 1950 (aedeagus, surstylus); Vala & Gbedjissi 2011 (many figures of the egg, larVae, and puparium). Holotype : ♂ , DEMOCRATIC REPUBLIC OF CONGO : Rwindi , 1000m ., 26.xi.1934 . Seen by Knutson in 1978 at IRSNB in Cabinet No . 41, “Parc National Albert”, Box No . 8 . SENEGAL : Gambier R. , 1♂ , [no date] Wolbacher ( MCZ ) ; NIGERIA : Lagos , Ikoyi , 1♂ , 14.i.1974 ; same locality, at light, 1♂ , 25.vi.1975 , M. A . Cornes ( NHMUK ) ; N.E. Bornu , Ngala & Gamboru , irrigation scheme, wheat plot, 1♀ , 28–29.ii.1972 , Deeming ( USNM ) ; Zaria, Samaru, 1♂, iii.1969 , m. v. trap ; 1♂, 1.vii.1969 ; 2♂, 2.iv.1975 ; 1♂, 14.ii.1976 , Deeming (NHMUK); same locality, 1♀ , 3.ii.1978 ; 1♂, 15.ii.1979 ; 1♂1♀, v.1979 ; 1♂, vii.1979 , Deeming (NMWC); Bauchi , pond with Oryza barthii , 2♂ 3♀ , 1–12.iv.1990 , Deeming ( NMWC ) . CHAD : Mani, Chari Baquirni, 3♂ , 9.ii.1966 ; Boum Kabir , moyen Cheri , 1♂ , 10.iv.1966 , Hitchcock ( USNM ) . Other new records: KENYA : Kivu , contr. S. Kahuzi , km. 27, 2200m , 1♂ , 28.iii.1953 , P. Basilewsky ( MRAC ); R . CONGO: RNA, Kanyatsi (lieu-dit), Lac Edourd, 912m , 1♂ , (no date). P. Vanschuytbroeck ( IRSNB ) ; SOUTH AFRICA: Basutoland , Hensley’s Dam , 8mi . SW Leribe , 2♀ , 30.iii.1951 , Brinck’s Rude beck ( IRSNB ). PLATE 6. Fig. 26— Sepedon ( Sepedomyia ) nasuta (Verbeke) head, lateral View, 27— Sepedonella castanea sp. n. ♂ postabdomen, lateral View, 28— Sepedonella nana Verbeke ♂ postabdomen, lateral View, 29— Sepedoninus curvisetis Verbeke ♂ postabdomen, lateral View, 30— Ethiolimnia zumpti Verbeke ♂ postabdomen, posterolateral View. For abbreViations see plate 1 . PLATE 7. Figs 31–34. Sepedon ( Sepedomyia ) nasuta Verbeke ♂ (Prepared by L. Lawrence-Heath from pencil drawings by G.C. Steyskal), 31—postabdomen, lateral View, 32—postabdomen and surstyli, Ventral View, 33—aedeagus and hypandrium, Ventral View, 34—aedeagus and hypandrium, lateral View. For abbreViations see plate 1 . Published records. REPUBLIC OF CONGO ( Knutson 1968 ); DEMOCRATIC REPUBLIC OF CONGO ( Verbeke 1950 , 1963 ); ETHIOPIA ( Knutson 1968 ); BÉNIN ( Vala et al . 1994 ; Vala & Gbedjissi 2011 ). Biology. Larvae feed obligatorily on fresh-water oligochaete worms (Vala et al. 2000; Vala & Gbedjissi 2011 ).