5â H. C. EFFLATOUN. 



SPHENISCOMYIA DEBSKII Efflat. 

 (PI. III fig. 9) 



Efflat., Bull. Soc. lioy. Eiitoin. d'Egypte, 133. (1923) 



DIAG'NOSIS: — A small black species which possesses only 

 one pair of b.sc; an entirely dark head; hind tibiae with at least 

 their basai halves black and black wings, which, in addition to the 

 three hyaline indentations, possess a hyaline band near the base 

 leaving more than the upper half of the wing base black. 



Maie and Female. Length of body : 3 — 3.5 nam., ovipositor : 

 1.5 mm., wing : 3 — 3.8mm. 



DESCRIPTION: — Frons very dark reddish-brown and dull 

 owing to a very minute greyish pulverulence ; face black, very shi- 

 ning, except for a vertical line situated between the hoUows of the 

 antennae which possesses a minute grey pubescence; cheeks also 

 covered with grey pubescence above, but very shining black below; 

 epistoma slightly projecting when seen from above; proboscis dark 

 yellowish-brown, with brown bristles; occiput entirely l)lack with 

 the ocp. also black; antennae very dark blackish-brown with the 

 third joint covered with a minute light reddish-brown pubescence; 

 ail the bristles of the head are black. 



Thorax globate, very shining black, with ail the bristles black; 

 it also bears a dark reddish-brown pubescence, which is scattered : 

 scutellum shining black, free from pubescence, and with only one 

 ])air of b.sc. 



Abdomen shining black like the thorax, also bearing reddish- 

 brown hairs, which are rather scattered and become a little longer 

 at the apices of the .'■egments; there are some much longer bristly 

 hairs on the latéral margins of the three apical segments and on the 

 lower margin of the fifth segment. Venter ail dull black except for 

 a médian longitudinal shining black stripe. Maie hypopygium 

 small, rounded and shining black; fomale ovipositor longer than the 

 alidomen, a little convex above but flat lu'lnw, shining black and 

 bearing some minute black hairs. 



Legs black and yellow ; ail the femora are black ; front and mid- 

 dle tibiae black on their basai halves, and yellow on their apical 

 halves, although sometimes the black is a little more extensive on 

 the middle tibiae, but never as much as on the hind tibiae which are 

 black except the apical fourth yellow; tarsi wholly yellow except tho 

 two or three apical joints of the liind tarsi blackish; pubescence on 

 legs black ail over. 



Wings normal in shape and characterised by having, in addi- 

 tion to the four black bands, a large black spot on the base which 



