NATHAN BANKS. 257 



clothed with short black hairs, spurs 2-4-4 ( 9 ) ; wings uniformly blackish, some- 

 what shining, clothed with short black hair, veins black, fringe black; hind 

 wings uniform blackish, with black fringe; abdomen blackish. 

 Length 12 mm. 



Santa Maria, Puebla, Mexico (Barrett). 



Heteroplertron incsicanum n. sp. 



Head, palpi and antennae black, with short black hair, a pale reddish spot on 

 middle of vertex, prothorax above and below yellowish, rest of thorax black, 

 with black hair; legs black, with short black hair, spurs 2-4-4 ( 9) ; abdomen 

 yellowish; wings uniformly blackish, sparsely clothed with short yellowish 

 hair, veins black, fringe very short, black: hind wings much shorter, blackish, 

 fringe black. 



Length 15 mm. 



Cuernavaca, Morelos, Mexico (Barrett). 



Leptocella itiimita n. sp. 



Greenish; head and thorax clothed with white hair; antennae white, nar- 

 rowly annulate with brown; palpi and legs yellowish, with white hairs: wings 

 hyaline, clothed with snow-white hair, and a white fringe, a few black dots be- 

 yond the anastomosis; discal cell nearly as long as the pedicel, convex above, 

 first apical cell reaches about one-half way to the anastomosis, fifth to about 

 two-thirds. 



Length 8 mm. 



Pullman, Washington (C. V. Piper). 



4l>4'li)i:i guttata n. sp. 



Pale yellowish ; head clothed with white and pale yellow hair; legs whitish ; 

 antennae pale on base, narrowly annulate with brown, apical half darker; wings 

 pale brown, clothed with golden scales, and with about thirty white dots, most 

 numerous in apical part, where they usually adjoin a brown dot; fringe mostly 

 golden, but with some brown posteriorly, anastomosis not darker than other 

 veins; hind wings dark gray, with a brown fringe. 



Length 7 mm. 



New Brunswick, N. J. (J. B. Smith). 



Trirenodes borealis n. sp. 



Dirty yellowish, verging on brown : head clothed with white hair; palpi with 

 many black hairs; antennae pale, narrowly annulate with brown; wings with 

 many yellowish hairs, but with plenty of black, giving the wing a gray appear- 

 ance, much darker than T. flavescens ; sometimes two black dots on hind margin, 

 fringe at apex mostly yellowish, but at posterior angle fuscous; hind wings pale 

 gray, with gray fringe: venation as in T. ignita. 



Length 12 mm. 



St. Anthony's Park, Minnesota (Pettit). 



Tria?iio«les flavescens n. sp. 



Yellowish; head clothed with white hair: palpi with many gray and some 

 black hairs ; antennae white, narrowly annulate with brown; wings clothed with 



TRANS. AM. ENT. SOC. XXVI. (33) JUNE, 1900. 



