THE CANADIAN ENTOMOLOGIST. Ill 



C. fagicorticella Cham. 



This species does not closely resemble any of those figured in Nat. 

 Hist. Tin. ;. the larval case, however, resembles that of C. murinipmnella in 

 form. The imago is perhaps more like C. Gnaphalii than any other there 

 figured. The palpal tuft is very small and the al. ex. varies from something 

 over yi to about i 7 o inch. The wings are very indistinctly marked, and 

 the yellowish tinge of the apical portion of the primaries is faint. There 

 is a wide, pale vellowish-ochreous streak along the dorsal margin ; indeed 

 sometimes the entire dorsal part of the wing beneath the fold is of that 

 color, and the furcate yellowish streak above the fold is so close to it that 

 one sometimes may fail to observe that the fold itself is whitish. Very 

 faint lines may also be observed along the course of the veins in the apical 

 part of the wing, and their course in perfectly fresh specimens is made 

 more distinct by lines of sparsely dusted brown scales which margin them ; 

 the streak along the costa is also very indistinct. Cilia? of fore wings pale 

 yellowish ; hind wings and their cilia?, and abdomen, gra\ ; anal tuft 

 white. Length of larval case 2y 2 lines. 



C. unieolorella Cham. 



This species was described from captured specimens, and I have since 

 bred it. The larval case does not closely resemble any of those figured 

 in Nat. Hist. Tin. It is most like that of virgaurce, but is much shorter in 

 proportion and smaller every way, with the anterior end curved down- 

 wards. It is grayish or ochreous, with little blackish specks adhering to 

 it. Length 2% lines. 



The imago is sometimes a little larger than the dimensions given 

 (t\ inch), reaching $& inch al. ex. It is proper to add that the hind wings 

 and upper surface of the abdomen are slate color, the under surface of the 

 abdomen yellowish, and the antennae very faintly annulate with yellowish. 

 Otherwise the entire insect is as I have described it, of a grayish drab 

 color. Of the species figured in Nat. Hist. Tin., it seems to come nearest 

 siceifolia, having the hind wings wider than in the other unicolorous 

 species there figured • but the fore wings are rather darker than in that 

 species. The case is very common in May, adhering to the bark of forest 

 trees, but the food plant is unknown. 



C. linea-pulvella Cham. 



Palpi tufted ; antenna? with the basal and a few following joints a little 

 enlarged. Head and appendages pale ochreous, the outer surface of the 



