A Monograph of Egyptian Diplcra. 4° 



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 the disc but the pubescence behind is yellow. Eyes densely clothed 



with pale brown hairs which do not extend to the upper and 

 middle portions where the facets are larger; on the front and back 

 the facets are much smaller. Antennas with the first joint lighter 

 in colour, as a rule it is reddish-brown, the second joint brownish- 

 black, and the third still darker, almost black; the third joint is 

 rather long and bears about a third from its base a bare arista, 

 which is brown, longer than the joint and with more than its 

 basal half thickened. 



Thorax rather shining bluish-black but obscurely tawny along 

 the sides. Pubescence dense brownish-yellow in colour. Scutellum 

 brownish-yellow when seen sideways, but when seen from above, 

 the basal two thirds is more obscure, and the tip brownish-yellow; 

 it bears rather long, dense, light yellow pubescence. 



Abdomen deep dull black with shining areas and possesses three 

 pairs of yellowish-white, yellow or orange lunules. On the second seg- 

 ment these lunules are almost straight and equal, but on the third 

 and fourth segments they are sloped upwards towards the front 

 margin, from about the middle of the side of the segment; they 

 are narrowed about their middles and dilated at their inner ends 

 which, sometimes touch the front margin; none of these lunules 

 go near to the actual side margin; the fourth and fifth segments 

 have narrow yellow hind margins. Pubescence short and mainly 

 following the ground colour except on the side margins near the 

 base where it is long and pale brownish. Hypopygium small. 



Legs with the basal half of the anterior femora blackish; the 

 hind femora are all blackish except the distal end; all the tarsi are 

 darkened above. Pubescence is mostly blackish behind the anterior 

 femora, but on the hind femora it is nearly uniformly yellowish ; 

 there are some tiny bristles on the hind tibiae and tarsi which are 

 yellowish except for a few black ones in front of the hind tibiae. 



Wings pellucid, with the subcostal cell and stigma pale brown. 

 Squamulae and their fringes whitish, but their margins yellow. 

 Halteres yellow or orange. 



Female, (PI. IV. fig.5). — Similar to the male; face is about equal- 

 ly wide at the vertex and mouth owing to its sides being very gently 

 out-curved; face is pale yellow with a small darkened central line 

 below and possessing uniformly pale pubescence. Frons inflated 

 and vaguely darkened especially on the large dark spots above the 

 antennae, when it is viewed from the front; its pubescence is uni- 

 formly dense, short and black. The upper part of the occiput, when 

 seen from above is shining asneous and rather inflated. Facets of 

 the eyes all equal. Pubescence on the thorax is slightly shorter and 



