406 A Monograph of Cidicidae. 



of a low pool or in moist mucl The .adult lives for weeks. The 

 larva varies greatly in size (from 6 to 8*5 mm.); when full 

 grown they are greyish or yellowish in colour, but when young 

 almost white save for a yellowish head ; antenna rather short, 

 curved, thick at base, tapering apically ; lateral combs of eighth 

 segment with 10-12-15 scales each, arranged in a double row. 





m 



Fig. 173. 

 Labial plate of Culex iylvestris. Theobald. (Alter Felt.) 



each scale is fringed at the sides with small hairs ; pecten of 

 siphon consists of two rows of 14-18 spines, varying as shown in 

 the figure. 



The larvae occur almost everywhere in New Jersey, except in 

 salt marshes and foul water. Common with C. canadensis in 

 woodland pools and in open swamps. Not all the eggs laid by 

 one female hatch at the same time. Pupal stage two or throe 

 days." 



Culex albipes. Lutz (1904). 



Mosq. do Brasil, pp. 6, 41, 72 and 76 (1904). 



" Length nearly 3 mm., without the proboscis which measures 

 \\ mm. 



Proboscis. — Long, with apex enlarged, dark violet coloured ; 

 the labellae yellowish, with black base. 



Palpi — Joints indistinct, yellowish at the base, with a white 

 ring, apical half black, with one end yellow, some hairs at the 

 base and some longer ones at the bottom of the base of the 

 proboscis. Clypeus dull cream colour. 



Antennae. — Dull yellow with whitish reflections, the la] 

 verticillate hairs dark, the small pale, both with a whitish 

 shimmer. 



