THE CANADIAN ENTOMOLOGIST. 399 



NORTH AMERICAN TORTRICID.^E. 



BY PROF. C. H. FERNALD, AMHERST, MASS. 



Eucosma Pergandeana, n. sp. — Expanse of wings, 16-20 mm. Head, 

 palpi except a touch of fuscous on the outside, basal segment of the 

 antennae, white ; flagellum of antennae fuscous, annulate with white. 

 Thorax varying from white to pale straw colour. 



Ground colour of fore wings white or pale cream colour ; the outer 

 half of the costa with about eight oblique fuscous lines, which are lost in 

 the fuscous dorsal portion of the wing. The remaining portion of the 

 wing is streaked longitudinally with fuscous, but so diffuse as to render the 

 lines very indistinct, and the surface behind and beyond the cell is nearly 

 uniformly pale grayish fuscous in some specimens; the ocelloid patch near 

 the anal angle is represented by fragments of three fine blackish lines, more 

 or less obliterated and broken by a short vertical bar of more or less 

 distinct metallic pale gray scales ; a similar one beyond follows the outer 

 margin and joins the first below, but is broken near the middle of its 

 course. Fringe very pale gray, sprinkled with brownish atoms. 



Hind wings pale gray, with a silken lustre ; a little lighter beneath. 

 Fringes white, with a very pale gray extra-basal line, not apparent in some 

 specimens. 



Abdomen above and beneath concolorous with the hind wings. 

 Under side of fore wings fuscous except along the outer part of the costa, 

 where they are lighter and reproduce the oblicjue stripes of the upper side. 



Legs pale gray, with the tarsi of the middle and hind pair darker, and 

 the tibiae and tarsi of the fore legs also darker. 



Described from thirteen males and three females before me, together 

 with several others in too imperfect condition to include as co-types. They 

 were captured as follows: Chicopee, Mass., June 21, 1896 (Knabb) ; 

 Essex Co. Park, N. J., June 6, 1904 (Kearfott); Virginia, June 4, 1882 

 (Pergande) ; Toronto, Can., June 1 t-i8, 1904 (H. S. Saunders) ; Texas ; 

 Loveland, Col., July, 1891 (Smith reed, from Lord Walsingham); Arizona. 



The Arizona specimens and some of those from Colorado and Texas 

 have the ground colour of the fore wings pale yellow or cream colour. 

 This is not constant, but a gradation from one to the other, and therefore 

 the subspecific name oifiavana may be given to this form. 



I have named this species after Mr. Theodore Pergande, of the Bureau 

 of Entomology in the Department of Agriculture, Wasiiington, D. C, from 

 whom I received my first specimen, and for whose knowledge of insects 

 and real worth as a gentleman, I have the highest respect 



Archips strianus, n. sp. — Expanse of wings, 21-25 mm. Head, thorax 

 and fore wings very light wood-brown, with a slight tinge of pink in fresh 

 specimens; palpi, collar and tegulse marked more or less with dark brown. 



December, 1905. 



