THE CANADIAN ENTOMOLOGIST. 409 



laterally. Clypeiu; brown. Proboscis black, showing a pale, indistinct 

 median area in some lights. Palpi short, black.scaled, testaceous in the 

 middle owing to a bare area. Antennas deep brown. Thorax clear 

 brown, scantily clothed with very small narrow curved pale bronzy scales 

 (in some lights the metanotum is deeper brown) ; scuiellum paler, gray 

 in some lights, with small narrow curved bronzy-brown scales and rather 

 long deep-brown border bristles, eight to the mid-lobe ; metanotum 

 ochraceous-brown to brown ; pleura pale shiny gray, with some rows of 

 small black bristles. 



" Abdomen deep blackish brown, with basal pale bands to the third, 

 fourth, fifth and sixth segments, traces on the seventh, pronounced on the 

 eighth ; the first segment is nude, shiny, testaceous, with brown hairs 

 and two small median patches of black scales, border bristles pale 

 ochraceous. 



" Legs deep brown, unbanded ; base and venter of femora gray, also 

 to some extent the venter of the tibiae and some pale scales beneath the 

 tarsi. Apex of hind tibiae with a pale spot, femoral and tibial hairs pallid; 

 ungues small, equal, simple, much curved. Hind tibiae and metatarsi 

 about equal. Wings with typical Culex scales ; first submarginal cell 

 considerable longer and a little narrower than the second posterior cell, 

 its base near the base of the wing, its stem one-third of the length of the 

 cell ; second posterior cell small, its stem about two-thirds the length of 

 the cell ; lower branch of the fork much curved ; posterior cross-vein 

 rather longer than the mid, not quite its own length distant from it ; 

 median vein-scales on the third rather large and dusky. Halteres with 

 white stem and fuscous knob, sharply contracted. Length 4 mm. 



" ^ similar to $ . Palpi with acuminate apical segment, the last 

 two and apex of the antepenultimate segment black, with black hair tufts, 

 remainder of palpi brown. Proboscis deep brown, with an indistinct 

 broad median pale band. Fork cells small, the first submarginal longer 

 and narrower than the second posterior cell, its base nearer the base of 

 the wing ; the stem about two-thirds the length of the cell ; stem of the 

 second posterior nearly as long as the cell. Ungues of the fore and mid 

 legs unequal, uniserrated ; hind equal and simple. Genitalia with sickle- 

 shaped claspers, internal prominence with three thick flat spines, the mid 

 broadest, the smallest not hooked at the apex, foliate plate acute apically, 

 with a prominent curved spine over its base (tig. 29). Length 4 mm. 



" Observations. — It comes very near C. fatigans and its allies, but 

 the male genitalia differ, and the small thoracic scales at once separate it, 



Pecember, 1905. 



