50 MISC. PUBLICATION 336, U. S. DEPT. OF AGRICULTURE 
AEDES VEXANS (Meis.) 
(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 abundant in the extreme South, and the 
writers have taken only occasional specimens in Florida. ‘The adults 
have narrow rings of white scales on the hind 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 confirmatus 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, 6), 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 encounter ed 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 (50), Georgia (134), and South Carolina (56). The 
writers also have collection 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 New Orleans 
and Mound. The species has been recorded from Baton Rouge, La., 
Scott, Ark.. (85), Pickwick Reservoir, Ala. (136), Charleston, S. C. 
(56), and North Carolina (D. F. Ashton, 1938), as well as from some 
of the Northeastern States and the Tropics. 
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. infirmatus and other 
woods species. It resembles infirmatus except that the white stripe 
on the thorax is much narrower (fig. 12, 7). The species is common 
in the Gulf States and is probably ‘distributed throughout the south- 
eastern region. In addition to the localities given by Dyar, it has 
been reported from Alabama (67), Arkansas (80), and South 
Carolina (56). 
