[ AQUATIC INSECTS IX NEW YORK STATE 477 



dd Front wings densely clouded in many 



places, specially just back of Ri Tbatesli 



cc Costal cells with only one or no white dots 

 d Front wings with dark circle near the fork- 

 ing of media; triangular Avhite spot at 



stigma Snubila 



dd Front wings not marked as above 9armata 



IXESCmPTIOU" AND GEOGRAPHIC RANGE OF SPECIES 



1 C. inamabilis McLachlan 



1868 Corydalis inamabilis McLachlan, Linn. Soc. Jour. 9:235, 

 pl.8, fig.3 



Pale brown; abdomen pale fuscous; palpi black, with broad 

 whitish yellow annulations; mandibles long, slender, finely 

 rugose, pale brown with apical portion black; head yellowish 

 brown, anterior margin nearly black; finely rugose above, 

 beneath, and posteriorly with coarsely reticulated spaces ; ocelli 

 yellow; eyes plumbeous; caudal portion of head with im- 

 pressed streaks and spots; prothorax longer than broad, slightly 

 widened posteriorly; upper surface convex, pale brown, has- 

 tate median impression behind; roughened raised places along 

 the sides; legs and feet pale yellowish brown, tarsi and tips of 

 tibiae darker; antennae scarcely shorter than body, pale brown, 

 three or four terminal joints black, basal joints bulbous, joints 

 beyond basal fourth with a short triangular acute tooth; appen- 

 dages of the male long, yellowish, slightly pilose; superior pair 

 sinuate, the tips bent under and somewhat retuse; inferior pair 

 geniculated, apexes directed upward and slightly dilated; wings 

 long and narrow, subacute, cinereo-subhyaline; front pair with 

 white dots in cells everywhere except in the costal area, Sc area 

 with fuscous spaces, stigmatic region slightly yellowish, C-So 

 cross veins black except those near the middle, which are whitish 

 in the center; all discal and apical cross veins black; longi- 

 tudinal veins yellow, subcosta and radius marked with fuscous; 

 hind wings hardly paler, cross veins of discal and apical areas 

 black, those in basal discal region yellow; front wings with 

 about 26 cross veins between all branches of radius, media with 

 four branches, CUj with three accessories. Alar expanse 100mm; 

 body without appendages 3omm; mandibles of male 26mm. 



Waco and Dallas Tex. 



