new species of North American Tortricidse. 501 
A hdomen blackish (possibly somewhat discoloured by grease), with 
a white transverse band behind the thorax. Legs whitish, with 
greyish fuscous tarsal bands. 
Type $ . Mus. Wlsm. 
Hah. Colorado— Larima Co., 10,000 ft., July, 1891 
(Smith). 
Penthina duplex, sp. n. (PI. XII., fig. 4.) 
Antennce 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. Forewings 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 cosia, 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 darki dividing line. JExp. al., 
27 mm. Hindw'mgs 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. 
Hah. 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. 
