46 MISC. PUBLICATION 336. U. S. DEPT. OF AGRICULTURE 



AEDES TRISERIATUS (Say) 

 (The tree-hole Aedes) 



This common woods species has patches of silvery-white scales on 

 the sides of the thorax (fig. 12, F) , which give it a rather conspicuous 

 appearance. The proboscis and legs are unmarked. It breeds prin- 

 cipally in tree holes but to some extent also in water barrels and other 

 artificial water containers. It is widely distributed throughout the 

 United States and undoubtedly occurs in all the Southeastern States. 

 It is frequently a troublesome biter in the woods. TTheii the larvae 

 are found in water barrels associated with those of Aedes aegypti, 

 they can usually be distinguished with the naked eye by their darker 

 appearance. 



AEDES VEXANS (Meig.) 

 (Syn., Culex sylvestris Theob., C. stimulans Coq. (not Walk.)) 



Aedes vexans is of wide occurrence throughout the United States 

 and other countries and is a serious pest in many areas. It breeds 

 in rain pools and floodwaters, and there may be several broods during 

 the season. It is seldom abimdant in the extreme South, and the 

 writers have taken only occasional specimens in Florida. The adults 

 have very narrow rings of white scales on the liind tarsi, and the 

 white abdominal bands usually show a V-shaped notch in the middle 

 of the posterior border. The proboscis and thorax are unmarked. 



AEDES INFIRMATUS D. and K. 



(Syn., Culicelsa conflrmatus Dyar (not L.-Arr.), in part) 



This vicious biting mosquito breeds in temporary rain pools and 

 at times becomes very abundant. The thorax has a wide, conspicuous 

 central stripe of silvery scales (fig. 12, B)< but the proboscis and tarsi 

 are unmarked. In common with most of the other woods mosquitoes, 

 the females attack readily during the daytime in or near woods, and 

 at night they may be encountered in the vicinity of dwellings. They 

 seldom enter houses except when they become excessively abundant. 

 The species has been recorded from Arkansas, Louisiana, Florida, 

 North Carolina (40), and Georgia (109). The writers also have col- 

 lection records from Louisiana. Florida, and Mississippi. It probably 

 will be found in all the Southeastern States. 



AEDES DUPREEI (Coq.) 



This rare species breeds in temporary rain puddles. The larvae are 

 seldom collected, owing to their habit of hiding among the leaves 

 and trash at the bottom of pools. They are recognized by the ex- 

 tremely long anal gills. The adult females closely resemble those 

 of Aedes atlanticus and A. tormentor, although they are somewhat 

 smaller. The writers have taken them in Florida at Perry, Boyd, 

 and Carbur and in Orange County, and in Louisiana at Xew Orleans 

 and Mound. The species has previously been recorded from Baton 

 Rouge, La., and Scott, Ark. 



AEDES ATLANTICUS D. and K. 



(Syn., Ochlerotatus serratus Coq. (not Theob.), in part) 



Aedes atlanticus breeds in shady temporary rain pools. It is a 

 vicious biter and is usually associated with A. infirmatm and other 



