NATHAN BANKS. 259 



Pliilopotiiimis biirn-tlx 11. sp. 



Head black, witli short yellow pubescence, above on each side is a large tuft 

 of long black hair, three ocelli; palpi black; antenna; yellowish; thorax with 

 yellow pubescence on middle and black on sides; legs yellowish, the femora 

 blackish, except on tips; abdomen yellowish; fore wings brown, with large 

 irregular patches of golden yellow hair, one near base on cubiti. several long 

 ones along veins before and at the anastomosis, one on middle of costal margin, 

 and several small ones along the apical margin, elsewhere with black pubescence ; 

 hind wings blackish, with black fringe. 



Length 10 mm. 



Jalapa, Vera Cruz, Mexico (Barrett). 



Polycenlropus variegatus n. sp. 



Face with gray hair, above with yellowish hair, each side behind is a tuft of 

 black bair; antenna? brown, narrowly annulate with pale, thorax with short yel- 

 low and tufts of long black hair; legs yellowish, anterior pair darker outside 

 spurs 3-4-4; wings with dark brown bair and many scattered patches of yellow, 

 most numerous on apical part, where there is a round spot in apex of each cell 

 and each side of pterostigma; venation as in P. confusa ; hind wings gray on 

 base, blackish on apical half. 



Length 9 mm. 



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



I'OTAMYIA n. gen. 



A Hydropsychid near Macronema. No ocelli ; spurs 2-4-4 ; an- 

 tennae long, basal joint short; maxillary palpi slender, destitute of 

 long hair; wings rather long, with scant pubescence, discal cell 

 closed, longer than in Macronema, first and fifth apical cells long 

 pedicellate, third acute at base, no veinlet closing off base of first 

 subapical into a median cell, and the radius does not run into the 

 subcostal vein before tip. 



Type P. flava Hag. (sub Macronema). 



Rhyacopliila inexicana n. sp. 



Head dark brown, with some short yellow hair, behind on vertex are two 

 oblique approximate yellowish lobes; antenna? pale yellow, darker on tips; palpi 

 brown, long; thorax black, with bright yellow hair: legs clear yellowish, middle 

 femora blackish, except on tips, spurs brown, 2-4-4, median pair on middle tibia 

 much nearer to base than to tip ; abdomen yellowish ; wings brown, densely 

 clothed to slightly beyond the anastomosis with short, bright, golden yellow 

 hair, beyond with hlack pubescence, the costal region black, fifth apical cell 

 with a pedicel about one-third its length ; hind wings uniform blackish. 



Length 10 mm. 



Xico, Vera Cruz, Mexico (Barrett). 



TRANS. AM. ENT. SOC. XXVI. JUNE, 1900. 



