336 Bulletin de la Société Royale Entomologique d'Egypte 
a half orbita. Breadth of front at narrowest part equal 
to half eve width. Frontals descending- in an elegantly 
curved line till end of second antennal segment. Gena! 
bristles long, but few in number. Retro-ocular bristles 
in three rows. Antenna black, third segment one 
and a half the second, this bears a long bristle on its 
anterior edge. Arista feathered to three quarter of its 
length. Head dull yellowish grey with dark brown 
reflections. Yibrissae above oral margin at about half 
the length of third segment of antenna. Palpi black, 
slender, suddenly broader at tip. 
Thorax. — Prescutellar pair of acrosticlials pre¬ 
sent on second segment, with a weaker pair before it. 
2+4 de., stpì. I : I : I. Anterior spiracle black. Scu¬ 
te! 1 urn with a vertically erected, crossed pair of long 
apicals and two pairs of marginals. 
Wings. — Costal spine vestigial. First vein bare, 
third with scattered hairs at basal half. Section III. of 
costa equal to one and one fifth times Section Y. Pos¬ 
terior alulae brownish white, anterior shining white; 
halteres brown. 
Legs. — Middle femur without comb, but with a 
row of basal longer bristles intermingled with hairs an d 
a similar row on anterior edge. Posterior femur with 
two rows of not very long bristles on antero-dorsal 
face, ventral with rows of longer bristles on anterior 
and posterior edge and some scattered longer hairs at 
basal face. All tibiae without hairs, but with very long- 
bristles. 
Abdomen. — Pair of median marginals present 
on second segment; third with six marginals of which 
a pair in median line; fourth with a complete submar- 
