198 Journal New York Ento-molocical Society. [Voi. x. 



cles. Tube about twice as long as wide, conic-tapered, brown infus- 

 cated, with posterior double pecten and small tuft. Anal segment 

 completely ringed, brown with normal tuft and ventral brush, the 

 latter without tufts before the barred area. Latera comb of the eighth 

 segment a small patch of rather large thorn-shaped spines scarcely- 

 more than two rows deep. Anal finger-shaped processes often very 

 small, scarcely longer than wide. 



Pupa. — Normal, not distinguishable from allied species. 



Culex pipiens Limneus. 



Stas^e IV. — (PI. XVII, Fig. 3.) Head rounded, fiill at the sides, 

 pale ; antennae large and long, completely infuscated or, in pale spe- 

 cimens, somewhat lighter at the base, the tuft at the outer third of the 

 joint and the part beyond it more slender than the basal part. Abdominal 

 hairs stout, moderate, the thoracic ones with infuscated tubercles and 

 scarcely barbuled, abdominal ones double, but slight. Tube four 

 times as long as wide, strongly tapered on terminal half, pale brown ; 

 a small weak double posterior pecten followed by several tufts of hair. 

 Anal segment completely ringed by the plate, pale brown ; tuft and 

 brush normal, the latter confined to the barred area. Comb a large 

 patch of small spines in a low triangle about four rows deep (Fig. 3, B ). 



Culex melanurus Coqi/il/eff. 



Egg. — Laid singly and separate, floating on the surface. Elliptical, 

 rounded rather bluntly at one end, tapering to the other which is 

 smaller, but also rounded ; one side flattened ; finely granular with 

 rounded, projecting granules which are larger at the ends, conspicu- 

 ously so at the big end, forming a sort of cap which terminates on the 

 flattened side in a slight ridge. On the central part of the egg the 

 sculpturing resembles a fine shagreen. Opacjuely sordid white, the 

 ends black. Length, .9 mm. ; width, .15 mm. 



Stage III. — Head rounded, pale brown, the antennal tuft at the 

 outer fourth of the joint, the short terminal part slenderer than the 

 basal part, all infuscated and darker than the head. Body hairs 

 numerous on the thorax but rather short and with small basal tuber- 

 cles, slightly barbuled ; abdominal ones becoming smaller posteriorly. 

 Tube rather more than four times as long as wide, a little bent and 

 only slightly tapering, being three fourths as wide at tip as at base ; a 

 small weak double pecten, unusually closely placed and followed by 

 several slight irregular tufts. Comb a single row of spines produced 



