Euscelidia bishariensis Efflatoun, 1937

Dikow, Torsten, 2003, Revision of the genus Euscelidia Westwood, 1850 (Diptera: Asilidae: Leptogastrinae), African Invertebrates 44 (2), pp. 1-131 : 25-27

Euscelidia bishariensis Efflatoun, 1937

Figs 16 , 17A–D

Euscelidia bishariensis Efflatoun, 1937: 420 ; Hull 1962: 305; Theodor 1976: 21; Oldroyd 1980: 356.

Diagnosis: The species is distinguished from congeners by the densely grey or yellow pruinose sct with two narrow median apruinose stripes and two lateral apruinose stripes, the apruinose proximal half of abdominal T2, and features of the ơ terminalia (d aed shea laterally flattened).

Redescription: Head: Black; fc silver pruinose, fc gib indistinct, mystax white, 10 macrosetae; oc tr silver pruinose dorsally; occ silver pruinose, setae white and yellow; Antennae - scp yellow, yellow setae ventrally; ped yellow, yellow setae dorsally and ventrally; pped light brown, white pruinose; apsel light brown; Thorax: Black; sct silver pruinose, 2 narrow median longitudinal stripes, not reaching posterior margin, and 2 lateral stripes, not reaching anterior margin, apruinose, white setae on pruinose area; macrosetae: white, 1 npl s, 1 spal s; sctl silver pruinose, ds sctl s and sctl s short, white; Legs - pale yellow to brown; pro and meso fem yellow, meta fem pale yellow proximally, brown distad, clubbed; pro and meso tib yellow, meta tib brown, pale yellow stripe not reaching tip anteriorly; emp short, about a quarter of length of clw; Wings - hyaline, brown stained, few microtrichia scattered on remigium and margins; ptero distinct, light brown; cell d terminating in 2 veins; hlt light brown; Abdomen: Black; T predominantly brown pruinose, anterior, lateral, and posterior margins grey pruinose, T 2 in proximal half apruinose dorsally, T1 with white setae laterally, T2 with few white setae laterally, remaining T with yellow and white setae, S grey pruinose, S2 apruinose proximally; ơ terminalia Figs 17A–D - sur pointed distally, small lobe ventrally; hypd ventral margin straight; d aed shea laterally flattened; lat apod simple.

Type material - The type specimens have to be considered lost. I was unable to locate the depository.

Type locality and distribution ( Fig. 16 ): Sudan, Elba, Gebel, 2110'N 36 35'E. Efflatoun stated the type locality to be Gebel Elba in the south-eastern desert in Egypt. The only place I was able to find is Elba in north-eastern Sudan, lying close to the border of present day Egypt. Additionally to the specimens examined, the species is known to occur in Sudan in the Afrotropical Region (Oldroyd 1980) and Egypt in the Palaearctic Region ( Lehr 1988) .

A B C

D E

F G H

Material examined: ERITREA: 1^ Sheb, 16 02'N 39 14'E, 11.iii.1955 ; 1^ 1? Ailet , 15 33'N 39 09'E, 18.ii.1956 ; 3^^ 1ơ 2?? Wadi Damas , 15 30'N 39 11'E, 14.ii.1956 ; 1^ Dongollo Basso , 14 41'N 38 50'E, 7.ii.1957 ; 1^ Jebel Gedem , 9.ii.1956 . Depository : BMNH .

Figures

Fig. 16. Distribution. Euscelidia anthrax, triangles; E. bequaerti, circles; E. bicolor, squares; E. bishariensis, stars; E. discors, pentagon; E. fastigium, hexagon.

Fig. 17. ơ terminalia. A–D. Euscelidia bishariensis. A. Dorsal. B. Ventral. C. Lateral. D. Aedeagus lateral. E–H. E. cacula sp. n. E. Aedeagus lateral. F. Dorsal. G. Ventral. H. Lateral. Scale line = 1 mm.