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



269 



of blunt spines. Phallosome (Ph) of two plates connected basally; each plate 

 elongate, the tip with a short stout apical tooth, a stout subapical tooth on outer 

 margin, and a strong pointed ventral tooth; base of each plate giving rise to a 

 long tail-like hook directed ventrally. Claspette absent. Basistyle (Bs) nearly 

 twice as long as broad, outer margin strongly curved, apex narrow; vestiture 

 of scales and numerous setae. Subapical lobe (S-L) deeply divided into two 

 distinct trunks: Posterior trunk bearing a long flattened pointed strongly 

 recurved spine, three shorter slightly flattened rods, a moderately-broad weakly 

 striated leaf-like filament, and two narrower leaf-like filaments; anterior trunk 

 cleft nearly to base into two stout branches, each bearing a long strong rod with 

 tip flattened, curved, and pointed (often with a small apical retrorse barb). 

 Dististyle (Ds) nearly three-fourths as long as basistyle, curved, narrow medi- 

 ally, outer margin near tip expanded cap-like and bearing a row of very short 

 reflexed setae, tip pointed and slightly reflexed; terviinal claw (Ds-C) short, 

 curved, blunt. 



larva. (Fig. 151). — Head much broader than long. A stalked ovoid gill 

 on ventral side of head at base of antenna. Antenna as long or longer than 



Fig. 150. Male lerminalia of Culex pilosus (Dyar and Knab). 



