130 THE MOSQUITOES OF NEW JERSEY 



the water in which they lived ; in fact unless they are nearly full grown 

 they rarely develop at all. The pupal period ranges, even in midsum- 

 mer, from four to seven days. 



[This species when present in numbers has proved to be a very an- 

 noying biter.] 



Aedes trivittatus Coquillet 

 The Three-Striped Mosquito 



DISTRIBUTION AND CHARACTERIZATION 

 [United States from Massachusetts to Texas and in Mexico and 

 Central America. In New Jersey 3,683 females have been trapped.] 



It is recognizable by three black, longitudinal stripes with pale yel- 

 low background on dorsum of thorax. Legs and beak unhanded, wings 

 unspotted, abdomen has white lateral marks which often cross dorsum 

 at base of segments. 



DESCRIPTION OF THE ADULT 



Medium sized, body exclusive of beak measuring 5-5.5 mm. (.20-.22 

 inch) ; beak 2.5 mm. long or almost half length of body. Head is cov- 

 ered with pale yellowish or grayish scales, darker at sides ; proboscis 

 black, without marks ; palpi in female black, with terminal joint small, 

 bluntly pointed at apex and flat at base. In male black, without rings, 

 and shaped like those of A. canadensis. Antennae brown in both sexes 

 with basal joint of male yellow. Thorax pale yellow with three black, 

 longitudinal stripes on dorsum, central not reaching posterior margin 

 of mesonotum ; pleura dark brown with patches of grayish white scales ; 

 legs black; under sides of femora pale yellow. Claws of male in ante- 

 rior and middle tarsal joints unequal in size, larger with median and 

 basal tooth, smaller with a single tooth near base. Claws of posterior 

 tarsal joint equal, each with single median tooth slightly nearer base. 

 In female claws alike on all feet, equal and with one tooth in center of 

 each like posterior ones of male. 



Dorsum of abdomen black, venter whitish, white extending up sides 

 at base of segments and upon dorsum, at front angles of posterior 

 segments. These lateral marks often continue narrowly across abdo- 

 men, especially in males. 



HABITS OF THE ADULT 

 This is another woodland mosquito, and one which has not, up to 

 the present time, been found in towns or even on porches of buildings 



