1865.] 15 



projection in that direction to the middle of the interspace beyond the 

 subcostal nervure ; the outer margin starting from the costal border 

 runs generally in a straight line a little inwards to the second subcos- 

 tal nervule ; bent outwards, generally rather abruptly, it extends in a 

 broad curve to the inner border, sometimes in a smooth line, frequently 

 erenulated, occasionally slightly angulated ; this broad curve is gene- 

 rally depressed basewards more or less at the first median nervule, but 

 Dccasioaally it is wanting; the abrupt change at the second subcostal 

 nervule is also sometimes obscured so as to be unnoticeable by the an- 

 gularity of the band at this point, and it is sometimes indistinguish- 

 able even where the course of the margin is smooth. Beyond the 

 middle band the wing is marbled with blackish-brown, ochraceous 

 and grayish-white, the latter most conspicuous on the portion next 

 the middle band, forming a band bordering the middle band in which 

 the ochraceous tints are seldom seen ; between this and a dusky 

 border band which is sometimes indistinct, sometimes conspicuous by 

 the presence of blackish-brown spots in the interspaces either at its 

 marginal or internal border, there is generally an indistinct band of 

 blackish-brown and ochraceous marbling, with some interspersed scales 

 of grayish-white; in this band are small, round, white, grayish-white 

 nr yellowish-white, generally distinct spots; sometimes the whole apical 

 portion of this wing beyond the middle band is so obscured by grayish 

 scales as to be nearly uniformly hoary, though deeper away from the 

 border ; sometimes the whole wing is so nearly uniformly marbled with 

 blackish-brown and grayish-brown spots (not streaks), the latter occa- 

 sionally tinged with ochraceous, that the middle band and all the other 

 V)ands are quite obliterated ; quite frequently the whole base as far as 

 the outer border of the middle band is almost wholly obfuscated with 

 blackish-brown or blackish so as to show no trace of the middle band ex- 

 cept its outer border, in which case the outer half of the wing is gene- 

 rally nearly uniformly marked, and may even itself be almost wholly 

 obscured by blackish; the modifications and interchanges of all these 

 variations show, however, that all the specimens exhibiting them, in- 

 cluding not only the variations heretofore referred by authors to C. 

 Also, but also those specimens of greater uniformity of aspect referred 

 to C. Genu Bd , must be referred to one and the same species. 



7 S , 5 9 ; Hopedale and Strawberry Harbor. Labrador; Dr. A. 8. 

 Packard, Jr. Labrador ; W. H. Edwards. 



Moschler, in his article upon the genus C'hionobas in Europe (Wiener 

 Kntomologische Monatschrift VH, 169), and we believe all previous 

 authors, have considered the species described by Boisduval under the 



