NATHAN BANKS. 255 



area, all cells broad at anastomosis, upper cubitus fractured at posterior anastomo- 

 sis, inferior branch continuous, radius much bent at pterostigma ; hind wings 

 hyaline, veins pale. 

 Length 20 mm. 



Mt. Ranier, Washington (C. V. Piper). 



Not a true Stenophylax, but do not desire at present to make a 

 new genus from the one specimen, which is easily recognized by the 

 line on basal joint of antennse. 



HOUOPHYLAX n. gen. 

 Spurs 1-3-4, subapical pair on hind legs unequal in size; pro- 

 thorax small ; wings rather broad, apex blunt-pointed, apical mar- 

 gin slightly rounded, the anterior and posterior anastomoses in one 

 nearly continuous line, so that the apical cells are as far back as the 

 subapicals, the first subapical not on thyridial area, discal cell about 

 twice as long as pedicel, thyridial cell only a little longer, radius 

 bent at stigma; hind wing with third apical cell narrow at base, the 

 fourth broad. Easily distinguished from all our other Limnophi- 

 lids by the position of the anterior anastomosis. 



Homophylax flai ipemii* a. sp. 



Pale yellowish throughout, clothed with yellow hair; basal joints of antenna? 

 as long as head, well separated, more reddish ; prothorax with long yellow hair: 

 legs slender, with black spines, hind tibiae curved, with one spine before middle, 

 subapical spurs about twice their length before tip; wings pale yellowish hyaline, 

 veins yellowish, uniformly clothed with short yellowish pubescence, membrane 

 granulate, arculus and thyridium white, first apical cell broad at base, but a very 

 short distance on discal cell. 



Length 18 ram. 



South Park, Colorado, Aug. (Oslar) 



Halestis formosiis n. sp. 



Head yellowish, with nearly golden hairs above, antennae yellowish, darker 

 toward the tips, thorax reddish yellow, prothorax with golden hairs, legs yellow- 

 ish, the tibiae and tarsi more reddish, spines black, two small ones at tip of each 

 anterior femur, hind femora spined nearly to base ; spurs 1-3-3. Wings hyaline, 

 marked with brown, costal area free to the dark pterostigma, tip of wing nar- 

 rowly and irregularly pale, a pale area across the apicals before middle, but the 

 apicals are dark at base, a pale area just within the anastomosis connected to a pale 

 stripe that starts from before the pterostigma and reaches obliquely backward 

 toward middle of the hind margin, but not crossing the post-cubitus, an oblong 

 pale spot toward base along the anal vein, elsewhere brown, containing scattered 

 pale circular dots; costal veins and radial sector to anastomosis pale, elsewhere 

 the veins mostly dark : hind wings grayish on tip. 



Length 22 mm. 



Southwest Colorado. July (Oslar). 



