286 AGRICULTURAL EXPERIMENT STATION. 



A number of pupse were brought in with the larvae and from 

 these aduhs of both sexes were obtained. Several larvae pupated 

 and matured, giving an average duration of three days in that 

 condition. The pupa is normal in appearance. 



Other collections were made at the same place August 13th, 

 when full-grown larvae and pupae were obtained, and September 

 3d, when half-grown larvae only occurred. 



Mr. Grossbeck found the lai-vae in woodland pools in the Great 

 Piece Meadow, September 9th and loth, fully developed and in 

 the pupal stage. Adults were obtained after an average stay of 

 four days in the pupal stage. September 24th half-grown larvae 

 were found in the same place; but none of these were brought to 

 maturity. September 29th, he found larvae on the Garret Moun- 

 tain near Paterson. It is probable, of course, that the species will 

 be found in other parts of the State where there are low, swampy, 

 dark woodland areas. 



The record indicates continuous breeding from the middle of 

 July to the end of September, and it may begin much earlier. 

 This question could not be settled in 1904, because of the ex- 

 tremely dry conditions early in the season. 



CULEX TRIVITTATUS, COO. 



The Three Striped Mosquito. 



This species is recognizable by the three black, longitudinal 

 stripes with a pale yellow background on the dorsum of the 

 thorax. The legs and beak are unhanded, the wings unspotted 

 and the abdomen has white lateral marks which often cross the 

 dorsum at the base of the segments. 



Description of the Adult. 



This is a medium-sized mosquito, the body. exclusive of the beak 

 measuring 5-5.5 mm.,=.20-.22 of an inch in length; the 

 beak 2.5 mm. long or almost half the length of the body. The 

 head is covered with pale yellowish or grayish scales, darker at 

 the sides; the proboscis black, without marks; the palpi in the 

 female black, with the terminal joint small, bluntly pointed at 

 the apex and flat at the base. In the male they are black, with- 

 out rings, and shaped like those of C. canadensis. The antennae 

 are brown in both sexes with the basal joint of the male yellow. 

 The thorax is pale yellow with three black, longitudinal stripes 



