OF WASHINGTON. 117 



DESCRIPTIONS OF NEW TRICHOPTERA. 



By NATHAN BANKS. 



(Plates vm, ix.) 



The following pages contain descriptions of thirty new cad- 

 dice-flies from the United States, a generic synopsis of the 

 family Sericostomatidse, and an arrangement of the species of 

 the genus Neuronia. Several new genera in the Limnephilidse 

 are described ; these will be tabulated in a future paper on the 

 classification of this family. The whole is preliminary to a 

 catalogue of the Neuropteroid insects of Boreal America, to 

 be published in a short time. 



Phryganea californica, n. sp. 



Head yellowish brown, with white hair; thorax blackish, with white 

 hair and black bristles; a tuft of black bristles at base of fore wings; 

 the white hair forms a broad median stripe on the thorax; abdomen 

 brown, banded with yellowish or whitish above ; legs pale yellowish, 

 with only a very few pale yellowish spines on the tibiae, anterior tibiae 

 rather infuscated at tips. Wings uniformly blackish fumose, densely 

 clothed with long black and white hair intermixed, darkest along the 

 basal venation ; an elongate white spot on the thyridium before fork, 

 a white dot in base of third apical cell, the cross-vein at base of the 

 fourth apical cell, and the lower part of the arculus hyaline. Both 

 wings very narrow and almost acute at tips, the outer edge in fore 

 pair being straight, not convex, a distinct cross-vein between costa and 

 subcosta near pterostigma; discal cell plainly shorter than its pedicel; 

 first apical sector arising from about middle of cell; the apical cells 

 long and narrow; the arculus straight. In the hind wings the discal 

 cell is vry short, not one-third the length of the second apical cell, 

 fifth apical cell very short pedicellate ; no cross-vein from radial sector 

 to radius. 



Expanse, 33 mm. 



One female from California (no definite locality). 



Neuronia inornata, n. sp. (PI. IX, fig. 20). 



Head and thorax yellow-brown, abdomen dark brown; maxillary 

 palpi and antennas yellowish brown ; head and thorax with gray hair ; 

 legs dull, pale yellowish ; both pairs of wings soiled, whitish hyaline ; 

 faint indications of brown irrorations near veins of anal area of fore 

 wings ; pterostigma rather darkened ; venation pale brownish, a dark 

 dot in base of third apical cell. Wings rather broad, sparingly clothed 



