Séance da 24 Décembre 1924 
383 
species from the Sahara, (Beni Ouriif de Figuig and 
other places). 
Culex sinaiticus, n.sp. 
Male : 
Head dark, clothed with almost white narrow 
flat-lying scales, and upright forked ones which are 
pale brownish yellow on the vertex, and dark brown 
at the sides and at the back of the occiput. Torus 
yellowish testaceous, darker brown on the inner side, 
with a few small white scales arranged in a semi¬ 
circle on the inner side above. Intermediate joints of 
the antennae whitish with black rings; hairs of the 
whorls long and dark : the last two antennal joints 
almost black. 
Clypeus dark chestnut brown; proboscis clothed 
with dark brow n scales, with a rather indefinite broad 
ring of paler brown scales just beyond half-way, and 
some pale scales at the sides towards the tip. Palpi 
almost black, a narrow' pale ring rather before the 
middle of the long joint, and a broader indefinite pale 
ring rather before the apex of the long joint. 
The last two joints black above, the penultimate 
one broadly white scaled beneath except at its ex¬ 
treme apex, and the last joint with white scales on 
the basal half beneath. 
The palpi are longer than the proboscis by the 
length of the last joint. 
Thorax dark brown, uniformly clothed with pale 
golden brown scales, which are rather more straw^- 
coloured at the sides in front and just in front of the 
scutellum. Scutellum with straw-coloured scales, the 
bristles long, brown; three on each of the side lobes 
