12 AMERICAN NEUROPTKRA. 



forewings not very long; the anal vein runs into an oblique vein 

 from the cuhitus, parallel to fork 5, which is part of the disjointed 

 anastomosis ; no cross-vein between radial sector and median vein. 

 Type. — ^-1. modesta n. sp. 



Atomyia modesta Bks. — Maxillary palpi dark gray, labial palpi lilack- 

 ish ; basal joint of an tennse black, beyond pale, narrowly annulate with dark; 

 head black, .si'ay hairs in front, yellowish above from the warts; thorax brown, 

 yellowish tufts at base of the forewinps; abdomen dark brown above, yellowish 

 beneath ; legs pale yellowish. Wings gray, sparsely clothed with blackish hairs; 

 venation mostly yellow-brown, fringes dark gray, rather long, especially so on 

 the posterior margins. Preapical spurs on hind tibiae once and one-half their 

 length before tip; preapical spurs of middle tibiae about twice their length be- 

 fore tip, and nearly as close to base. Discal cell much narrowed before the tip, 

 about half as long as its pedicel. Expanse 14 mm. 



Specimens from Black Mt., North Carolina, May (Beutenmiiller). 



Spllinctogaster lutesceiis Provancher.— Head black, with few long 

 white hairs; antennie and palpi pale; thorax pale yellow, an oblong spot in mid- 

 dle of base, and a spot each side at base of wings, dark brown, long yellow or 

 white hairs in tufts; abdomen brown above, yellowish below; legs pale yellow. 

 Head transverse, antennse at base widely separated, tlie basal joint not very long, 

 not longer than vertex; antennse scarcely as long as wings; vertex with a me- 

 dian carina, and an elongate wart each side near posterior margin. Spurs short, 

 2-4-4; subapical pair on middle tibiai plainly beyond second third, in hind tibiae 

 they are six times nearer to tip than to base; hind tibia swollen near tip and 

 curved, much longer than femur; middle tibia shorter than femur. Abdomen 

 compressed, in male swollen below, and obliquely truncate at tip. Wings pale 

 yellowish, with short, sparse pale hair, venation of forewing as figured, in hind- 

 wing the discal cell is open, and there are no furrows. There are a few small 

 spines on middle and hind tibise. Expanse 20 mm. 



Three specimens from Ithaca, New Yoik. 



The shape of the male abdomen is peculiar, but the broad head 

 and widely separated antennae are of more generic importance. 



Spliiiietegaster nigrosonia n. sp.— Similar in structure to S'. lutes- 

 cens. Differs in having palpi dark, basal joint of antenTise black and black 

 haired, beyond pale, with brown tips to joints. Thorax deep black; femora of 

 legs black, except extreme tips; abdomen brown. Wings rather darker than .S. 

 lufescens, with gray fringe. More iilack hairs on vertex. Expanse 24 mm. 



One female from Ithaca, New York. 



The genera of Hydropsychidaj known to me as occurring in 

 North America may be separated by the following table: 



1. Spurs 3-4-4; radial sector connected to radius above discal cell ; no ocelli.. .2. 

 Spurs 1 or 2-4-4 6. 



2. No cross-vein in costal area ; discal cell in hindwings closed. .Neureclipsis. 



