62 THE CANADIAN ENTOMOLOGIST. 



brown, legs pale yellow. Wings hyaline, very evenly marked with brown 

 fimbriae, veins dotted with brown, the gradate series more heavily brown, 

 outer and posterior margin with brown spots alternating with pale. In 

 hind wings the venation is brownish and the pterostigma rather reddish. 

 Fore wings moderately long and narrow, costal area quite broad at base ; 

 the lower branch of the median vein is slightly bent toward the cubitus. 

 There are four radial sectors, the first three not forked till near tip, the 

 fourth twice forked before gradate series. In the hind wings the first fork 

 of the radial sector is much before forking of median vein. 



Expanse, 16 mm. 



From Ft. Collins, August, and Veta Pass, ist July; Colorado. 



Sometimes there are but three branches of radial vein, then the last is 

 forked three times before second series of gradate veins. 



Hetnerobius pidus, n. sp. — Pale brown, prothorax rather darker, 

 antennae pale, black-ringed at base and black at tip. Legs pale yellow. 

 Fore wings hyaline, with four broad brown bands in the middle area of 

 wing, the two intermediate rather close together. Around the outer and 

 posterior margin are pale brown spots alternating with smaller whitish 

 spots, about eight of these dark spots ; costal area pale brown. Hind 

 wings hyaline, costal area and venation pale brown. The wings are rather 

 short, the costal area moderately broad at base. The first sector of 

 radius forks before origin of second sector, but is not connected back to 

 radius. 



Expanse, 12 mm. South-western Colorado ''Oslar). 



A very pretty species of the two-sector section, and differing from 

 others in pale venation of hind wings and the several bands on the fore 

 pair. 



Hemerobius speciosus, n. sp. — Head yellowish-brown, darker above ; 

 antennge pale ; thorax almost black ; abdomen dark brown ; legs pale 

 yellowish. Wings hyaline, marked with dark brown ; venation mostly 

 pale, with a few scattered brown dots, more brown toward margins ; 

 apical half of both anterior and posterior margins alternately brown and 

 yellowish. An indistinct brown patch in the costal area before ptero- 

 stigma ; five or six round, almost black, dots along radius, one at base of 

 each sector, except the first, which is beyond first sector, and one under 

 the pterostigma ; another similar spot on cubitus, where it is connected to 

 anal vein ; a series of four or five obliquely across wing following the first 

 gradate series, the anterior one being on the first fork of the fourth radial 



