OF WASHINGTON. 39 



species could be easily greatly reduced in numbers by treating the 

 artificial breeding places. The larvae closely resemble the mature 

 larva which I have figured as C. consobrinus from specimens 

 sent me by Messrs. Dupree and Morgan. They are generally 

 darker, the chitinized parts being usually black, though some 

 occur of a lighter tint, and these I am at present unable to dis 

 tinguish from C. consobrinus by any character whatever.* I bred 

 adults from larvae found in a fresh-water pool near the sea at 

 Victoria and in a rain-water barrel at Wellington, B. C. Also 

 from pools impregnated with hydrogen sulphide at Banff, Al 

 berta. 



Culex punctor Kirby. 



This was one of the very early species. A single larva and 

 several pupae were taken in a pool full of algae behind a stump in 

 a boggy part of the woods on May 31. The adults were flying 

 at the same time, with the early C. incidens, but they disap 

 peared soon. The eggs are spindle shaped, unusually thick and 

 short, diamond-shaped and rather large. They were laid singly 

 and hibernated. The larva falls in the table with C. sollicitans, 

 but is differentiated by having the lateral comb of the 8th segment 

 composed of four or five large thorn-shaped teeth instead of a 

 small patch. It is very close to Culex serratus as recently de 

 scribed by Smith, f 



Culex sylvestris Theobald. 



The adults occurred in July in small numbers, mixed with C. 

 cantans. No new facts were learned about the life history. 



Culex varipalpus Coquillett. 



A few adults were taken at altitudes higher than Kootenay 

 Lake. They were fairly common on the summit of a mountain 

 near Bear Lake at an altitude of 7,000 feet, but only a single 

 specimen was taken anywhere else. I owe the discovery of the 

 larva to Mr. J. W. Cockle, who was on the lookout for new 

 wrigglers for me. Mr. Cockle found some larvae in a pool, 

 mainly C. incidens as we learned afterward, and, having no 

 bottle with him, entered an abandoned Chinaman's shack for a 

 vessel in which to bring the larvae home. There he saw many 

 small wrigglers in an old dirty tin pan which had been filled with 

 water from rain coming through a hole in the roof. With com 

 mendable discrimination, he left the incidens larvae and brought 



* The young stages of C. consobrinus as sent me are quite unlike the 

 corresponding stages of C. incidens. But I have not yet bred C. conso 

 brinus myself and still feel some doubt about it. 



* Ent. News, xiv, p. 309, 1903. 



