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



143 



ment at apex, a similar one and a shorter, straight blunt filament subapically. 

 Basis tyle (Bs) about three times as long as broad, sides nearly parallel, some- 

 what curved, nearly truncate at apex, clothed with scales and numerous long 

 setae. Dististyle (Ds) reticulated, about three-fourths as long as basistyle, 

 slender basally, strongly inflated medially, broadest slightly beyond middle, 

 tapering distally, slender and curved near tip, terminating in a strong, peg- 

 like c/dw (Ds-C). 



larva. (Fig. 74). — Head broader than long. Antenna longer than head, 

 usually as long as the width of the head across the eyes, spinose; antennal 

 tiijt multiple, barbed, inserted near middle. Head hairs: Preantennal (A) 

 multiple, barbed, not reaching insertion of antennal tuft; tower (B) and upper 

 (C) long, 2-branched, barbed, extending beyond preclypeus (branches of B 

 as well as C nearly equal); postclypeal (d) small, branched; sutural (e), 

 trans-sutural (f) and supraorbital usually double or multiple. Upper lateral 

 abdominal hairs multiple on segments I and II, usually triple on III and 

 single or double on IV to VI. Comb of eighth segment of 6 to 8 scales; indi- 



-■^ 



IXT-L 



Fig. 73. Piorophora ferox (Humboldt). A, Hind tarsus. B, Male terminalia. 



