neiv species of North American Tortricidas. 501 



Abdomen blackish (possibly somewhat discoloured by grease), with 

 a white transverse band behind the thorax. Legs whitish, with 

 greyish fuscous tarsal bands. 



Type $ . Mus. Wlsm. 



Hal). Colorado Larima Co., 10,000 ft., July, 1891 



(Smith). 



~ Penthina duplex, sp. n. (PL XII., fig. 4.) 



Antennas cinereous. Palpi whitish ; apical joint very short, 

 grey. Head and Thorax whitish, the latter shaded with grey and 

 having a slight tuft at the back mixed with brownish ochreous 

 scales. ForewinffK with the costal margin evenly arched, apical 

 margin slightly oblique ; creamy white, with grey basal patch and 

 central fascia, both studded with dark umber-brown scales ; the 

 basal patch is wider on the dorsal than on the costal margin, 

 obtusely angulated outward on the fold ; the central fascia, narrow 

 on the costa, is dilated outwards beneath it, again contracted on the 

 cell, and thence again dilated more widely to the dorsal margin ; 

 the more conspicuous patches of dark scales upon it are one on the 

 cell, one at the lower edge of the fold, and one on the dorsal 

 margin at its outer extremity near the anal angle ; on the outer 

 half of the costal margin are three greyish fuscous spots with 

 minute specks of the same colour lying between them ; the whole 

 wing- surface beyond the fascia is overstrewn with delicate brownish 

 ochreous scaling in the form of oblique transverse streaklets, not 

 clearly defined, but giving a slight ochreous hue to the white 

 ground-colour ; some similar scaling may be seen on parts of the 

 central fascia, and conspicuously in a semicircular spot at the 

 extreme apex ; a series of small greyish fuscous spots lies around 

 the apical margin sending some dark scales through the white 

 cilia, near the base of which is a dark, dividing line. Exp. al., 

 27 mm. Hindwings umber brown ; cilia shining whitish, with a 

 dark dividing line. Abdomen brownish grey, the anal tuft in- 

 clining to ochreous. Legs pale cinereous. 



Type. 6 . Mus. Wlsm. 



Eab. Colorado Loveland, 5,000-10,000 ft., July, 

 1891 (Smith). 



A very large species not nearly allied to any other 

 North American form known to me. 



