90 
FRED. V. THEOBALD 
18. Culex bieolor Meig. 
Syst. Beschr. 1 (1818). 
Head brown with narrow-curved pale golden yellow scales and 
ochreous black upright forked ones. Thorax brown with golden narrow- 
curved scales, with traces of darker longitudinal lines. Abdomen scaled 
with dull yellow scales all over. Femora and tibiæ with dull yellowish 
reflections, tarsi dark brown. 
J . Head brown with scattered pale golden narrow-curved scales, 
with ochreous upright forked scales centrally, black towards the sides, 
lateral areas clothed with pale creamy flat scales ; palpi brown clothed 
with dark and pale creamy scales, the latter predominating and with 
black bristles ; proboscis ochreous, darker towards the apex ; antennæ 
deep brown, basal segment testaceous, also the clypeus. 
Thorax greyish-brown with darker longitudinal lines, clothed with 
narrow-curved pale golden scales and with dark brown bristles; scutellum 
pale testaceous with narrow-curved dull golden scales and brown border- 
bristles, nine to the mid lobe ; metanotum bright chestnut-brown ; pleuræ 
yellowish with some pale scaled areas. 
Abdomen black, more or less completely clothed with dusky yellow 
scales, but on the fourth segment the scales are somewhat darker in two 
areas giving a bispotted appearance (not seen in all lights) ; posterior 
border-bristles and lateral hairs pale golden ; venter similarly colored. 
Legs with the coxae, femora and tibiæ of a dull ochreous hue, the 
tibiæ darker (almost brown in some lights) than the two former, meta¬ 
tarsi and tarsi dark brown ; ungues all equal and simple. 
Wings with typical (Aito- scales, the first submarginal much lon¬ 
ger and slightly narrower than the second posterior cell, its base much 
nearer the base of the wing, its stem about one-fourth the length of the 
cell ; supernumerary and mid cross-veins not closely united, the posterior 
nearly twice its own length distant from the mid ; third vein and lower 
branch of the fifth vein darker scaled than the rest. Halteres pale ochreous. 
Length : 6 mm. (specimen swollen with blood and contracted). 
Meigen gives 7—8 mm. 
Habitat : Sfax, Tunis (Biró, 1903). 
Also recorded from : Austria (Schiner) ; Russia (Gtmmerthal) ; England 
(Stephens). 
Observations : Redescribed from a perfect female in this collection. 
I do not think there is any doubt that this is Meigen’ s species in spite 
of his curt and obscure description, but all of his few characters agree, 
granted the mesothorax of his specimen was rubbed. I had not previously 
