MOSQUITOS OR CULICIDAB OP NEW YORK STATE 



311 



of the segment, and with a slight median and lateral prolonga- 

 tion. Under surface of abdomen sparsely clothed with white 

 scales, posterior fourth of segments brown. Basal segment of 

 clasp stout, distinctly clubbed and somewhat lobed apically, bear- 

 ing a long, slender, curved segment tipped with a stout spine. 

 Ungues unidentate, except outer claw of fore leg, which is simple ; 

 tooth on inner claw almost capitate. 



Described from many bred specie 



mens, including several reared from 



isolated larvae. 



Larva. Nearly % inch long when 

 full grown, frequently greenish, 

 turning to a slaty color after death. 

 Antennae slightly darker at the tip, 

 nearly straight, tapering uniformly 

 and with tuft at the basal third, 

 tip bearing one very long and two 

 medium sized, slender processes, 

 one shorter, much stouter, almost 

 conical process and a very stout, 

 knoblike remnant of a segment. 

 Labial plate itriangular, with about 

 27 fine teeth. Compound, finely spinose hairs on thoracic seg- 

 ments, usually simple ones on the abdominal segments. Comb 



Fig-.50 Airtubeof C. lazarensis 



Fig. 51 

 enlarged 



Pecten teeth of C. lazarensis much 



consisting of a triangular patch composed of about 60 rather 

 stout scales, each tipped with about four to seven stout, equal 

 spines. Air tube short, a little over twice as long as broad, 

 slightly swollen at the basal third, bearing a double row of 

 posterior pecten, each row with about 20 short, black, stout 

 spines, usually with two well marked teeth at the extreme base. 

 A compound hair occurs near the extremity of each row of 

 pecten. Barred area short, on the posterior half of the anal plate 

 and composed of only about 12 bars, each bearing a compound hair. 

 Anal gills slender, acute at the tip. 



