182 Journal New York Entomological Society. [Vol. xv. 



dorsum at outer fourth, and evanescently the edges of the ruby red spots are so 

 colored. Cilia olivaceous brown, finely tipped with white. 



Hindwing. — Bronzy brown, cilia whitish. Underside both wings brassy 

 brown, the lower wing blotched with white, and the costal spots repeated on the 

 upper. 



One d\ Tacubaya, Mexico, collected by Otis W. Barrett. Type 

 in my collection. 



Argyresthia alternatella, new species. 



Expanse IO-I2 mm. 



Head white ; palpi golden ; antenna golden fuscous, basal joint paler ; thorax 

 white, patagia and posterior end golden ; abdomen and legs whitish ochreous. 



Foreiving. — Golden ochreous, reticulated with brown oblique fasciae, there are 

 five brown spots on costa, about equally spaced between inner sixth and outer fifth, 

 there are three similar spots on dorsal margin, at inner fourth, middle and outer 

 fourth ; broken brown fascia join the costal and dorsal spots, somewhat like a double 

 or joined letter WV. There is a streak of brown on dorsum at base, and the apex 

 of wing is lightly reticulated with this color. Cilia light brownish ochreous on costa 

 and upper half of termen becoming pale fuscous below middle. 



Hindwing. — Light fuscous, cilia with a faint ochreous tinge. 



Eight specimens, Essex Co., Caldwell and Watchung Mts., N. J., 

 May 8-21. 



Type in my collection. 



Mr. Busck, to whom these specimens were shown, thought they 

 might be A. cupressella Wlsm. (described from California) which they 

 superficially resemble, but the two species can easily be separated by 

 the venation. Cupressella has 1 1 veins in forewing and 7 in hindwing, 

 while alternatella has 12 and 8 respectively with 7-8 of former 

 stalked ; the latter species is quite a little larger. 



Argyresthia laricella, new species (PI. Ill, Fig. 5). 



Expanse IO-I2 mm. 



Head and palpi whitish ochreous, latter shaded with light fuscous externally on 

 median joint, face and antennas white ; thorax shining whitish ochreous ; abdomen 

 paler, legs whitish, anterior .pair and tarsi of all dusted with brown. 



Forewing. — Neary immaculate, very pale shining ochreous, the inner half of 

 costal edge and narrowly in the fold is more or less of a darker shade. Cilia whitish 

 ochreous. 



Hindwing. — Same color as cilia of forewing. 



Six specimens bred from larvre living in the terminal twigs of 

 Larix americana, at Mer Bleue, Ontario, Canada. In pupa June 19 

 (when found), issued July 3-6. 



Cotypes, Catalogue No. 12,059 U.S.N.M., Dr. Fletcher's and 

 my collection. 



