MOSQUITOS OR CULICIDAE OP NEW YORK STATE 



353 



long, slender, somewhat curved spines on each side near the mid- 

 dle. Basal segment of antennae short, cylindric, and tipped with 

 three nearly equal simple processes and a fourth slightly over half 

 the length of the others. Mandibles nine toothed, and bearing 

 two barbed processes with a rudimentary spine at the base of the 

 second. Siphon somewhat fusiform, its length about four times 

 its greatest diameter and the anterior respiratory trachea joining 

 the posterior one before reaching the tip of the siphon. Ventral 

 tuft of the anal segment thick, extending along the entire barred 

 area and consisting of numerous branched hairs ; dorsal tuft small 

 and composed of only a few hairs. Anal processes fleshy, four, 

 tapering to an obscure point ; the tip of the segment bordered by 

 numerous short, recurved, fleshy processes. 



Corethra lintneri n. sp. 



PI. 27, fig-. 4 



Larvae of this species were taken June 9, 1904, in a cold moun- 

 tain pool near Elizabethtown N. Y., where they were associated 

 with larvae of Culex lazarensis, 0. abserratus, 

 G. cinereoborealis and Eucorethra under- 

 wood i . Several adults emerged June 16 and 17. 



Description. Female. Antennae slender, sparsely clothed with 

 yellowish hairs, slightly fuscous apically, and each segment with 



tEig.92 Wing of female of Corethra lintneri 



a narrow, basal, fuscous ring. Palpi fuscous, basal segment 

 short, subglobose, second to fourth subequal, rather densely 

 clothed with coarse hairs, the terminal one remarkably distorted. 

 Labial palpi very short, subglobose. Occiput and thorax densely 

 clothed with long, golden yellow scales, the latter with a pair 

 of submedian, naked lines on the anterior two thirds. Pleura 

 semitransparent, yellowish. Abdomen yellowish, irregularly 

 marked with fuscous, specially along the posterior margin of the 

 segments, sparsely clothed with long, yellowish hairs. Dorsal 

 plate of terminal segment rounded, with a marked, median indenta- 

 tion. Ventral surface yellowish, sparsely clothed with fine, yel- 

 lowish hairs, with the posterior portion of the segments naked and 



