OF WASHINGTON. 15 



rating the aedid larvae from the culicids; but such is not the 

 case. a 



ILLUSTRATIONS OF MOSQUITO LARVJE. 



By HARRISON G. DYAR, Ph.D. 



(Plates II-V.) 

 Aedes busckii Coq. (PI. II, fig. i). 



Head rounded, not angled anywhere, brush concealed; two long 

 spines in front ; antennae short, cylindrical, with single hair near middle. 

 Body hairs moderate, diminishing posteriorly, the short hairs in large 

 stellate bunches. Comb of few scales in a small patch three rows deep 

 with evenly feathered tips. Air tube two and a half times as long as 

 wide, conic, the pecten of six remote long spines with a single hair 

 tuft just beyond the sixth. Anal segment plated, the plate oblique and 

 approaching the brush at the lateral point, spined posteriorly. Tuft 

 normal ; side tuft distinct ; brush small. Anal gills four, large, white- 

 spotted. 



Aedes mediovittata Coq. (PL II, fig. 2). 



Head flat behind, rounded on the sides, incised at insertion of antennae; 

 antennae slender, cylindric, not exceeding mouth brush, a small hair at 

 middle. Body smooth, all the short hairs developed into contrasting 

 stellate tufts, but the long laterals present also, diminishing a little 

 posteriorly. Air tube one and a half times as long as wide, thick, conic, 

 dark brown ; pecten very long and closely set, running in a strongly 

 curved line, followed by a single hair. Comb of seven spines, sole- 

 shaped at base with three-pronged tip. Anal segment half plated, the 

 plate spined at the tip. Dorsal brush large; lateral tuft strong; ventral 

 brush present but without distinct barred area. Anal processes four, 

 short, thick, blunt. 



Aedes albonotata Coq. (PL V, fig. 23). 



Head rounded, a slight angle at antennae and posterior margin; an 

 tennae slender, moderate, cylindrical, not very short but weak, with a 

 small single hair, brown. Body hairs diminishing posteriorly, the short 

 hairs rather long and pale, in substellate tufts. Comb of 13 scales in a 

 single curved row, pale, with thick body and feathered tip. Air tube 

 two and a half times as long as wide, the long pecten reaching half 

 way, slightly spirally twisted, followed by a tuft of two hairs. Anal 



a See, however, a previously published paper (Proc. Ent. Soc. Wash., 

 Vol. vn, No. 4, pp. 188-191, March 9, 1906), in which it is shown that 

 the Aedinae are not separable from the Culicinae, but that a subfamily 

 may be recognized for the Sabethinae. PUB. COM. 



