NOKTH AMERICAN NEUROPTKKA 209 



straifjlit, first siibapical on thyridial fully three times as far as first apical on 

 disi-al cell, vein at base of subapicals nearly straight, in hind wings the fourth 

 apical is nearly as wide at base as the second apical cell ; about eight spines 

 basad of subapical spurs on hind tibia;; male genitalia very peculiar, each side 

 piece is two-forked, the both erect, the apical one larger and more pointed. 

 Expanse 23 mm 



Olympia, Washington (Kincaid). 



ISteuophylax brevipeniiis n. sp.— Black, clothed with scattered black 

 bristles and yellowish hairs ; mouth and palpi fei-ruginous ; antennae ferruginous, 

 basal joints dark brown; posterior margin of vertex ferruginous; legs dirty 

 yellowish, brown on femora and tips of hind tibire, black spines and yellow 

 spurs, two black bristles just before tip on anterior femora, and underneath is a 

 row of short black hairs; wings hyaline, marked with brown, some small spots 

 along the suhcosta, a few on discal area, liinder portion nearly filled with brown, 

 leaving only small pale dots, apical cells slightly reticulate with brown in their 

 tips, pterostigma of both pairs brown, rest of hind wings hyaline, sometimes the 

 brown is spread over nearly all the wing, except costal area, fore wings short 

 and broad, rounded at tips, anastomosis nearly straight. Male appendages yel- 

 lowish, superior pair black at tips, large, truncate, seen above deeply cleft, below 

 concave, inferior pair shorter, upturned, acute at tip. Expanse 20 mm. 



Colorado (Baker). 



Chilostigiiia pallida n. sp. — Head pale yellowish, with pale yellow and 

 some scattered blackish hairs; thorax yellowish, with pale yellow hair; legs 

 pale yellowish, spines black; abdomen brown; wings hyaline, hinder half of 

 the apical part beyond anastomosis irrorate with pale yellow-brown markings, 

 pterostigma very prominent, large, yellow-brown, veins yellow ; hind wings 

 hyaline; antennae rather fine and short; spurs 1-2-2; wings moderately broad, 

 truncate at tip, the pterostigma elevated, the radius strongly curved at that 

 point, the first apical cell at base swollen above, and not extending along side of 

 discal cell at all, the anastomosis being very straight, not indented by third 

 apical, which is as broad at base as the fourth apical, fifth apical acute at base, 

 not extending along thyridial cell, vein at base of subapicals nearly straight, the 

 discal cell is slightly less than twice as long as its pedicel, in hind wings the 

 fourth apical is scarcely narrowed at base. Expanse 32 mm. 



Ithaca, New York. 



Halesus inagiiifira n. sp. — Face reddish, with yellow hair, vertex 

 darker, with pale yellow hair on hind margin ; antennae red-brown, basal joint 

 nearly black; thorax dark, with long pale yellow hairs on base; legs yellowish, 

 femora more rufous, spines black; abdomen ferruginous, fuscous at base : wings 

 thickly marked with large dark brown spots, basal part of costal space mostly 

 clear, extreme base of wing clear, and a large nearly clear spact) across middle 

 of discal cell, thyridial and interdavial areas, several large spaces in the bases 

 of the apical cells, the apical portion of third apical and first subapical cells 

 mostl.v clear, elsewhere the brown is thickly broken up by hyaline roundish 

 spots, often two or more are connate, a rather yellowish space before dark i)tero- 

 stigma; hind wings wholly hyaline, with long whitish fringe at anal margin, 



TRANS. AM. KNT. SOC. XXV. (27) JANUARY, lHy9. 



