Sepedonella nana Verbeke, 1950

Knutson, Lloyd V., Deeming, John C. & Ebejer, Martin J., 2018, The Snail-killing Flies (Diptera: Sciomyzidae) of West Africa, Zootaxa 4483 (1), pp. 67-100 : 90-92

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).

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).

Figures

PLATE 1. Figs 1–4, Colobaea occidentalis sp. n. ♂, 1—head, frontal View, 2—thorax, dorsal View, 3—hypopygium, lateroVentral View, posterior surstylus not shown, 4—head, lateral View. AbbreVations: Ae—aedeagus, AeA—aedeagal apodeme, As—anterior surstylus, Bp—basiphallus, C—cercus, CV—cochleate Vesicle, Dp—distiphallus, EjA—ejaculatory apodeme, Ep—epiphallus, F—aedeagal filament, Hy—hypandrium, Ps—posterior surstylus.

PLATE 8. Figs 35–38, wings of Sciomyzidae: 35—Pherbellia (Graphomyzina) kivuana Verbeke, 36—Pteromicra zariae sp. n., 37—Sepedon (Mesosepedon) knutsoni Vala, Gbedjissi & Dossou, 38—Sepedonella nana (Verbeke); 39—Sepedon (Mesosepedon) knutsoni, habitus, 40—Sepedon (Sepedomyia) nasuta (Verbeke) head, lateral.