Carpenter et al.: Mosquitoes of Southern U. S. 185 



three-fourths as long as basistyle, broader medially; terminal claw (Ds-C) 

 slender, about one-fifth to one-fourth as long as dististyle. 



LARVA. (Fig. 97). — Head broader than long. Antenna less than half as 

 long as head, slightly curved, sparsely spined; antennal hair usually double, 

 arising a litde beyond middle of shaft. Head hairs: Preantennal (A) small, 

 double or triple barbed; lower (B) double or triple, usually feathered toward 

 tip; upper (C) single; postclypeal (d) small, branched; sutnral (e) 2 to 4- 

 branched; trans-sutural (f) small, multiple; supraorbital single or double. 

 Comb of eighth segment consisting of a single curved row of 7 to 10 thorn- 

 shaped scales; individual scale with strong apical spine and minute lateral 

 spinules. Siphon about four times as long as wide, much narrower than the 

 anal segment; pecten of numerous evenly spaced teeth reaching basal third of 

 siphon; subventral tuft large, multiple, strongly barbed, inserted beyond pecten. 

 Anal segment shorter than wide, completely ringed by the dorsal plate; lateral 

 hair single; dorsal brush consisting of a long lower caudal hair and a smaller 

 double or triple upper caudal tuft on either side; ventral brush large, posterior 

 to the dorsal plate; gills 4, very long, more than five times the length of the 

 anal segment, tapered, with prominent darkly pigmented tracheae. 



distribution. — From Florida to New York and west to Iowa. Southern 

 States: Alabama (170); Arkansas (31); Florida (96); Georgia (97); Ken- 

 tucky (140); Louisiana (96); Mississippi (97); Missouri (46); North Caro- 

 lina (166); South Carolina (64); Tennessee (125); Virginia (49). Other 

 States: Iowa (156); New Jersey (77); New York (162). 



bionomics. — Adults are frequently taken in light traps in the southern 

 states. The larvae are found in temporary rain-filled pools and have a habit of 

 hiding among the leaves and debris on the bottom, making it difficult to 

 collect them. They are known to occur from June to October in the southern 

 states (4th Sv. C. Med. Lab. records, 1942-1944, unpublished). 



Aedes (Ochlerotatus) fulvus fallens Rossi 



Aedes fulvus pallens Ross, 1943, Proc. Ent. Soc. Wash., 45:148. 



ADULT FEMALE. — A medium sized to rather large bright orange-yellow 

 species. Head: Proboscis long, yellow scaled, dark at tip; palpi about one-fifth 

 as long as proboscis, yellow scaled, with dark-scaled tips. Integument of occiput 

 yellow to light yellowish-brown, clothed dorsally with narrow bright-yellow 

 scales, yellow setae, and yellow erect forked scales; clothed laterally with broad 

 flat yellow scales. Thorax: Integument of scutum yellow except for a pair of 

 large dark-brown to black postero-lateral spots, separated by the width of the 

 prescutellar space. Vestiture of scutum consisting of sparse narrow yellow 

 scales on the anterior half and sparse narrow dark-brown scales on the posterior 

 half, particularly on the lateral dark patches. Anterior pronotum, posterior 



1 This name was proposed by Ross for "bimaculatus" of the southern United States 

 which had been confused with Aedes bimaculatus (Coquillett) and Aedes fulvus 

 (Wiedemann). 



