122 BULLETIN UNITED STATES GEOLOGICAL SURVEY. 



middle and the other before the tip; costal margiu aud dorsal half of 

 the fore wings white; a wide browuish-ocherous basal streak occupying 

 the remaining portion of the wing* from base to tip. In the white of 

 the dorsal margin before the middle is a small brown spot, and there 

 are some others extending around the apes, four of them on the dorsal, 

 three on the costal side; cilia white; hind wings and cilia pale fnscous; 

 abdomen stramineous; anal tuft yellow; legs sordid grayish- white. Ex- 

 panse of wings, ii inch. Edgertou, among oaks; altitude, 6,500 feet. 



A. discostrigella n. sp. — Allied to the preceding species, but having 

 the fore wing of nearly the same general color with the wide basal streak 

 of that species, and the margins not white; this color may perhaps be 

 called a purplish-gray, with a slight ocherous tinge in this species, and 

 it is sprinkled with white. The scales are fine. A white streak extends 

 along the fold, and contains three blackish streaks, the first near the 

 base, the last about the middle. Above the fold is a narrow, wavy, 

 blackish line, margined with white, ending, at the end of the cell, in a 

 distinct blackish spot, beneath which is a white spot, margined behind 

 by another small black spot, and a row of black spots around the base 

 of the cilia, which are white. Head and upper surface of thorax white, 

 with a black spot on the anterior margin of the thorax, a small one on 

 each of the patagia, and two others (one about the middle, and before 

 the tip on each side of the thorax); antennae with alternate annulations 

 of white and black, the white prevailing in the basal and the black in 

 the apical portions; palpi white, the second joint dusted externally with 

 black, with a black annulus near the tip, and the tip of the third joint 

 blackish; abdomen and anal tuft ocherous-yellow ; legs blackish on the 

 anterior, and ocherous-yellow on the hinder surface. Expanse of wings, 

 1 inch. Edgerton, among oaks; altitude, 6,500 feet. 



To the naked eye, the fore wings appear of a watery-gray or leaden 

 hue, with a row of white spots along the middle, each margined by one 

 or two smaller blackish spots, and a row of black spots around the apex. 



Ivothris f Umaculella n. sp. — Third joint of palpi slender and much 

 longer than the second, pointed; second joint with a brush, as in JSf. 

 rerhascella; hind wings trapezoidal, wide, not incised beneath the tip. 

 Pale creamy-yellow, with a silky luster, with a "minute brown spot on 

 the fold and one at the end of the cell ; outer surface of the second joint 

 of palpi fuscous. Expanse of wings, 8 lines. Edgerton, in June. 



Harpalyce tortriceUa Cham. (Can. Ent., vol. vi, p. 235). — A single dam- 

 aged specimen was taken among scrub-oaks. I am convinced, however, 

 that it is identical with the Texas species. 



This generic name, of course, cannot stand. How I came to overlook 

 the fact that it was preoccupied among Geonietrida', by Stephens, need 

 not now be explained. 



Plutella cruciferarum Auct. — Captured on Berthoud's Pass. Altitude 

 about 11,500 feet. 



