1881.] NORTH-AMERICAN TINEID^. 315 



longed on the costal third nearly to the middle of the wing, dis- 

 tinctly margined beneath it by a strong reddish shade, outwardly 

 diffused and blended with the paler (more greyish) apical half of the 

 wing ; the costa slightly speckled with reddish grey ; two blackish 

 discal spots of raised scales scarcely beyond the basal third, the lower 

 one being the furthest from the base and slightly elongate ; beyond 

 these, about the end of the cell, is a whitish dot, surrounded by a 

 few fuscous scales, sometimes preceded by a similar but even less 

 conspicuous dot on the cell ; some fuscous scales are distributed 

 around the apical margin. Cilia dull reddish. 



Hind wings whitish grey, with rather rosy cilia. 



Expanse 21 millim. 



Five specimens taken near Fort Klamath, in Oregon, in the 

 autumn of 1871. One only is in good condition. 



This species appears to be allied to Depressaria cinijlonella 

 (Zeller), to which it bears some resemblance ; but it is less mottled, 

 and has more red about it ; moreover the fore wings are less attenu- 

 ated and elongate. 



Depressaria posticella, sp. nov. (Plate XXXVI. fig. 5.) 



Capite et thorace subochraceis ; palpis concoloribus, articulo se- 

 cundo externe fusco adsperso ; antennis fuscis ; alls anticis 

 subochraceis, rufo paulum svffusis, fusco irroratis, puncto disci 

 ante medium fusco, punctis marginalibus diffusis fuscis, nebula 

 ante angulum analem (disci dimidium costale nunquam attin- 

 gente) fusca, ciliis subfuscis (aliquando subroseis). 



Head and thorax rather dull ochreous ; palpi of the same colour, 

 sprinkled externally on the second joint with fuscous ; antennse 

 fuscous. 



Fo-re wings rather dull ochreous, sprinkled with fuscous scales, 

 and somewhat suffused with a reddisli tinge in some specimens, 

 with a small fuscous spot at the base of the costa ; a fuscous dot on 

 the cell before the middle, some diffused fuscous dots along the 

 apical margin, and a fuscous cloud or blotch before the anal angle, 

 reaching from the dorsal margin nearly to the middle of the wing, 

 but not attaining the costal half Cilia with a fuscous or a rosy 

 tinge in different specimens. 



Hind wings greyish ; the cilia rosy ; the anal tuft sometimes rosy. 



Expanse 18-21 millim. 



I met with this species in Lake county, California, on June 15 

 and June 30, 1871) and in Southern Oregon in May 1872. I also 

 bred a specimen from among larvae, feeding together with those of 

 another species of Depressaria (jisoraliella) on Psoralia physodes 

 (Dougl.), the larva being found in Mendocino county on May 24, 

 the perfect insect appearing on June 13. I am indebted to the 

 kindness of Prof. Henry N. Bolander, of San Francisco, for the de- 

 termination of this and other plants mentioned in this paper. 



The species differs from Depressaria angelicella, Hiib. (Staud. & 

 Wocke, Cat. n. 1736), iu the absence of a dot on the fold, and in the 



21* 



