Dec, 1904.] Dyar : Notes on Mosquito Larv^. 245 



redescribed by Messrs. Felt and Young (Science, n. s., xx, 312, 

 1904), under date of September 2, one day latter than the date of 

 issue of this Journal. They called it C. cinereoborealis. Dr. Felt has 

 very kindly transmitted to me a specimen of the larva of his species 

 and there is no doubt of its identity with my trichiirus. 



Larva of Culex pullatus Coq. — This is the species called Culex 

 impigerm my article on British Columbian mosquitoes (Proc. ent. soc. 

 Wash., vi, 37, ii;o4), which was the most abundant species at Kaslo, 

 B. C. As noted, the larva is closely allied to canadensis, differing 

 only in minor details, whereas the adult is very different. Of the first 

 stage, I made the following description : 



Larva, Stage I. — Head elliptical, rounded, the mouth large, quadrate, with 

 well developed brush ; eyes elongate elliptical. Thorax rounded, enlarged, abdomen 

 submoniliform, hairs moderately long, single, the lateral ones double on segments 

 I-4, gradually becoming shorter and weaker posteriorly. Lateral comb of the eighth 

 segment a single row of short, stout, pointed-tipped spines. Air tube three times as 

 long as wide, conical at tip with short, simple basal pecten and hairs beyond. Anal 

 segment with dorsal tuft, paired, two hairs in each half; no ventral brush. Four 

 anal processes longer than the segment. 



Culex aestivalis, new species. — I propose this name for the 

 species called Culex reptans in my article on British Columbian mos- 

 quitoes (Proc. ent. soc. Wash., vi, 38, 1904). It is clearly not the 

 European reptans {ne?norosiis), nor is it lazarcnsis Felt & Young, 

 which has a peculiar larva that I had not seen till I examined a speci- 

 men kindly sent to me by Dr. Felt. The larva of cestivalis is char- 

 acterized by the air tube being about three times as long as wide, the 

 pecten without detached teeth, followed by the tuft ; anal segment 

 almost completely ringed by the plate, the barred area running nearly 

 to the base, two tufts before it practically reaching base ; comb of the 

 eighth segment a large patch of thorn-shaped spines fully three rows 

 deep. 



Synonymy of Culex functor Kirby. — As this form has been 

 identified by Mr. Coquillett and myself, it is identical with Culex 

 abserratus of Felt & Young (Science, n. s., xx, 312, 1904), as I 

 learn from an examination of their specimens. If we are correct in 

 our identification of Kirby's species, abserratus will be cited as a 

 synonym thereof. The larva is characteristic by the smallness of the 

 comb of the eighth segment and the complete encircling of the anal 

 segment by its plate (Journ. N. Y. ent. soc, xii, 169, 1904, pi. ix, 

 fig. I). 



