42 MISC. PUBLICATION 336, U. S. DEPT. OF AGRICULTURE 



CULEX PECCATOR D. and K. 



(Syn., C. incriminator D. and K.) 



Larvae and males of this species are distinguished readily from 

 those of Culex erraticus and G. pilosus, although the male genitalia 

 are very similar to those of abominator (Texas) and anips Dyar 

 (California). Nothing is known of the blood-feeding habits of the 

 female. The larvae, when found, are almost always associated with 

 G. apicalis. 



The writers have taken occasional specimens at New Orleans, 

 Mandeville, and Mound, La., and in Orange and Osceola Counties, 

 Fla. The species has been reported previously from all the South- 

 eastern States except Florida, but records based on female specimens 

 alone are questionable. The larval description for the species by 

 Dyar and Barret (4-2) was based on specimens of Gulex erraticus. 

 The description was corrected by King and Bradley (77). 



CULEX PILOSUS (D. and K.) 



(Syn., Mochlostyrax ftoridanus D. and K., Culex deceptor D. and K., C. agitator D. and 



K., etc.) 



This small mosquito breeds in shallow grassy pools, roadside 

 ditches, hoofprints, and flooded areas. The eggs are able to with- 

 stand drying, a very unusual trait in the genus, and as a rule the 

 breeding places are more or less temporary. The collected larvae are 

 easily recognized by their peculiar wriggling motions and by their 

 habit of lying on their backs on the bottom of the container. The 

 tip of the air tube has a pair of recurved dorsal spines, which may be 

 used for retaining their submerged position. Nothing is known of 

 the feeding habits of the adult. The species is common in Florida. 

 In addition to the States listed by Dyar (Jfi), it has been recorded 

 in Lee County, Ga. (109) , Brewton, Ala. (83), and New Orleans, La. 

 (E. S. Hathaway, personal communication). 



Genus AEDES Meigen 



(Syn., Stegomyia Theob., Heteronycha Dyar (not L.-Arr.), Ochlerotatus L.-Arr., 

 Taeniorhynchus L.-Arr., Finlaya Theob., AedimorpJius Theob., Culicelsa Felt) 



With the exception of a few species, including the yellow- fever 

 mosquito (Aedes aegypti) and the tree-hole breeder (A. triseriatus) , 

 this genus typically breeds in temporary rain pools, floodwaters, and 

 tidal marshes. The eggs are laid singly on damp soil at the edge 

 of a pool or in moist depressions, and they are able to survive long 

 periods of drying. When such places are flooded with water and 

 the temperature is favorable, some of the eggs hatch almost at once 

 and often produce enormous broods of mosquitoes; others may not 

 hatch until subsequent floodings. With some species at least, the eggs 

 may also be deposited on the water surface, but most of them re- 

 main unhatched until the pool evaporates and has again been 

 flooded. Some species of Aedes have but one brood each year and 

 are to be found only in the spring, whereas others recur commonly 

 during a rainy season. The winter is passed in the egg stage. 



All except five of the species of Aedes included here are placed 

 by Edwards (1$) in the subgenus Ochlerotatus. The others are 

 divided as follows: (Aedes) cinereus; (Stegomyia) aegypti; (Aedi- 

 morphus) vexans; (Finlaya) triseriatus, atropalpus. Dyar's (Jfl) 



