254 AMERICAN NEUROPTERA. 



long as its pedicel, fifth apical cell pointed at base, not extending on thyridial 

 area, first apical cell for about its width on discal cell, upper branch of cubitus 

 fractured at posterior anastomosis, the radius bent at pterostigma ; hind wings 

 uniform blackish, with nearly black veins, fourth apical cell broad at base, the 

 third pointed. 

 Length 16 mm. 



Colorado : South Park, August ; Clear Creek, Sept. (Oslar). 



Asynarclms tristis n. sp. 



Face yellow; antenna? yellowish, narrowly annulate, except on basal joints, 

 with brown, vertex black, behind yellowish, prothorax with golden pubescence 

 and long yellow hairs; thorax dark, pale in middle, pleura yellowish, wings a 

 uniform dirty yellowish gray, sparsely clothed with short yellowish hair, surface 

 distinctly rugulose, veins yellowish, a brown dot in base of third apical cell, thy- 

 ridium unmarked, arculus white, first subapical very long, discal cell more than 

 twice as long as its pedicel, not concave above, inferior cubitus fractured at pos- 

 terior anastomosis, upper branch continuous, fifth apical extends scarcely basad 

 of anastomosis; hind wings uniformly faint gray, veins yellowish, fourth apical 

 broad at base. 



Length 20 mm. 



South Park, Colorado, August (Oslar). 



M < no|>h.i hi \ pacific lis n. sp. 



Black, with stiff black hairs; antennse black, beyond base narrowly annulate 

 with pale; femora, except pale tips, black, rest of legs yellowish, spines black, 

 many on anterior face of fore tibise, hind tibise much curved, slender, fore wings 

 blackish brown, pterostigma darker, post-cubitus and anal veins marked with 

 dark brown, veins mostly black, a pale area on bases of apicals, except the first, 

 pale in base and apex of first subapical, arculus pale, and an oblique pale 

 mark starting from middle of thyridial area and reaching backward across thy- 

 ridial cell, fourth subapical usually very dark, many scattered, very small, pale 

 dots not sharply defined. Apicals of about equal width at base, except fifth, 

 which is much narrower and extends but little basad of the anastomosis; discal 

 cell plainly longer than its pedicel, slightly concave in front; radial vein bent at 

 pterostigma; the cubitals fractured at the posterior anastomosis. Hind wings 

 hyaline, veins mostly brown, pterostigma dark, fourth apical cell broad at base. 

 discal cell slightly longer than its pedicel. 



Length 15 mm. 



Pullman, Washington, May (C. V. Piper). 

 Stenophylax antennatas n. sp. 



Head yellowish, with yellow hair, antenna? yellow, basal joints long, beneath 

 with a distinct black line; legs pale yellow, rather darker on tips, spines black. 

 tibiae very short; wings pale yellow, costal region unmarked, veins mostly pale, 

 apical sectors marked with brown, wing beyond the post-cubitus and the subapi- 

 cals mostly brown, somewhat irrorate with pale, surface plainly rugulose, with 

 sparse, short, fine, pale hairs; fore wing rather long and slender, the apex 

 obliquely truncate, discal cell a little longer than its pedicel, slightly concave in 

 front, first apical cell much longer on discal cell than fifth apical on thyridial 



