38 ENTOMOLOGICAL SOCIETY 



peared, except in the high damp valleys where they persisted 

 longer. Eggs were obtained of the usual spindle shape but 

 shorter and thicker than those of C '. cantans. They were laid 

 singly and hibernated. The larva closely resembles that of C. 

 canadensis, with which it sometimes occurred mixed. It may 

 be distinguished by the larger and coarser ventral brush of the 

 anal segment, composed of longer stemmed tufts and by most of 

 the chitinized parts being black instead of brown. 



Culex cantans Meigen. 



These mosquitoes became common in the woods in July, 

 gradually disappearing soon after. Eggs were obtained from 

 captured females, laid singly and of the usual elongate fusiform 

 shape, but they all hibernated, none having hatched at the time 

 of writing. Mr. O. A. Johannsen has described the larva. It 

 falls in the synoptic table in the long-tubed group with C. res- 

 tuans, quite an unexpected association, since its other charac 

 ters are those of the short-tubed larvaB. 



Culex reptans Meigen. 



This species appeared rather late in the season, no examples 

 being seen till the end of June, after which it became fairly 

 abundant. The flies were persistent in their attacks, alighting 

 and biting at once, without the preliminary deliberations seen in 

 other species of Culex. This is the summer mosquito of the 

 Kootenays and lasted longer than any other of the single-brooded 

 species. Eggs were obtained of the usual spindle shape, rather 

 thick and unusually small, laid singly. They have hibernated. 

 The larva was not seen. 



Culex canadensis Theobald. 



This mosquito was not rare early in the season, but soon dis 

 appeared. The larvae bred in the early pools left by the melting 

 snows, but apparently made no attempt to continue breeding 

 later in the season, as I observed to be the case in New Hamp 

 shire. In fact there was no suitable water left for them, and the 

 eggs must all hibernate, making the species single brooded. 



Culex incidens Thomson. 



This species was at no time abundant, though occasional speci 

 mens were met with all the season from May to September. The 

 species breeds continuously, the larvae hatching from floating 

 boat-shaped masses of eggs as with C. pipiens. They could be 

 found at any time in every old water barrel, pump tub, or dug 

 out spring hole. Also in holes formed by overturned tree-stumps 

 in swampy land, though nature seemed to furnish surprisingly 

 few breeding places for the larvae. If it were worth while, this 



