104 [June 



without the two dusky, obscure broad extra-mesial bands which cross 

 the primaries. The two or three sub-margiaal black patches on the 

 secondaries are often absent, and never connected in my specimens. 



Two specimens have below the 4th m. on the primaries, two sub- 

 equal paler round spots quite distinct, reminding us of C. quinaria. 

 One r 9 ) of the specimens has no dark bands and spots, the other ( S ) 

 a patch at the internal angle of the secondaries. I should not consider 

 them distinct, however. Another specimen from Mr. Sanborn has a 

 single pale dot margined with dusky just below the origin of the 4th 

 m. and the wing is obscurely, transversely banded, while there is a 

 dark spot at the internal angle of the secondaries, showing a passage 

 into the normal coloration. Mr. Sanborn has also another variety with 

 yellowish secondaries, which possesses the two usual patches of dark 

 near the inner angle. 



I have compared thirty specimens, from Mass. (Sanborn) and Mus. 

 Comp. Zool. (A. Agrassiz). Norway, Maine, (Smith, M. C Z.) and 

 Brunswick, Maine, whei'e it is common during June and July, flying 

 in day time; when disturbed, in open fields and pine woods in com- 

 pany with Geometridae. Another remarkable variety of this species 

 from Mr. Sanborn is immaculate, but only the body is reddish, while 

 the primaries and thorax above are pale greyish clay color, and the 

 hind wings are smoky clay ; but beneath the costse are orange ferrugi- 

 nous as usual, leaving no doubt that the specimen is a mere variation 

 of G . ferrxKjinom . 



The primaries of this species are broadest, most triangular, those of 

 G. breoicoriiis Walker, are a little narrower, while those of G. quinaria 

 Grrote, are still longer and narrower, the apex being much more pro- 

 duced while the outer edge is more oblique than in any other species 

 known to me. 



Crocota brevicornis Walker. 



Crocota brevicornis Walker, Cat. Lep. B. M. II. p. 536. (1854). 



Clemens, Proc. Acad. Nat. Se. Phil. (Nov. 1860). 

 Morris, Synop. Lep. N.Am. p. 255, Appendix, .307. (1860). 



This species has darker primaries, without the dusky bands, with 

 deeper vermillion secondaries, with very distinct discal spots, and a 

 broad submarginal dark leaden band, rarely interrupted. 



Mass. (Sanborn ; Mus. Comp. Zool. A. Agassiz). Maine (A. S. P. Jr.) 



