A. R. Grote's Notes on (he Zygicnulx of Cuba. 313 



specimen of C. pallicornis, when the two blackish discolorations of the 

 primaries are considered with the two dots on the secondaries, an 

 imaginary line may be drawn, nearly straight, slightly bent inwardly, 

 so as to include these four maculations. 



cimens before me, I am strongly inclined to doubt the existence of so many 

 Bpecies from the Atlantic District of the United States. Judging from my ma- 

 terial and Hilbner's figures of Eubaphe aurantica, and Crocota rubicundaria, I 

 Bhould refer both of these (as well as probably Mr. Walker's C. rubicundaria) a> 

 forms of the common C. ferruginosa, Walk. Indeed, where writers have referred 

 to C. rubicundaria. I think their material has been immaculate specimens of 

 this species of Mr. Walker's. As early as April, 1863, I have shown in these 

 Proceedings, Vol. 2, p. 31, that Dr. Clemens' opinion, that the Arctia rubricosa 

 of Harris was referable to Crocota. and was a " variable insect," was based upon 

 a mistake, since Harris' species belongs to the very distinct genus Phragmato- 

 bia, Stephens. At that time, also, I determined specimens in the Coll. of the Ent. 

 Soc. as " Phragmatobia (Arctia) rubricosa, Harris," as will be seen by reference 

 to the list of Bpecies, given as "determined by myself, on page 23 of the same 

 Volume, under date of April 1863. 



Leaving Crocota treatii, Grotc, from present consideration, since this species is 

 very distinct from any of the rest of the genus by its lithosiiform appearance 

 and coloration (resembling somewhat the insect figured as " Lithosia lseto, 

 Boisd," in Guerin,) I cannot find more than two species in the slight, tawny, 

 specimens which belong to the more geometriform group of the genus, and are 

 found from Maine to Georgia. These are the C. ferruginosa and C. brevicornis 

 of Mr. Walker, to which I would refer also Hilbner's two figures under distinct 

 names, as varieties. Dr. Packard has given nearer details respecting these spe- 

 cies in his •' Synopsis," and my own material bears them out. I have even 

 specimens of C. ferruginosa, with the "paler round spots quite distinct, re- 

 minding us of C. quinaria." This latter species I have illustrated typically 

 from a Canadian specimen with five pale blotches on the upper surface of the 

 primaries; I have it now from Texas and Virginia, with three, two, and obsolete 

 blotches. It will be recognized by the obliquity of the external margin of pri- 

 maries and the heavier body compared with the two above cited species of Mr. 

 Walker. It comes nearer to the Cuban species I have described, in the stout- 

 ness of the corporal parts, and especially to C. disparilis, Groie, but has nar- 

 rower wings, etc., than that species. 



It is not possible to do otherwise than to refer here C. choroina, Heakirt, a* 

 a Bynonym, when we consider the known variability of C. quinaria. Indeed, 

 without near details as to the comparative shape of the wings, etc., it will not 

 be possible to describe species of Crocota, so that they may be identified unless, 

 indeed, at the same time giving figures, and in this view it may be properly 

 said, that the " Contributions towards a Monograph of the genus Crocota," by 

 Mr. Tryon Reakirt,will not become available to the future Monographist of th« 

 genus, whose task is. indeed, no enviable one. 



Finally, C. opella, Grote, may be readily distinguished by its large six.'. 

 heavier ami most arctiiform habitus, and its simple ornamentation. It 

 varies from the typical form which I have figured, and in which the pri- 

 maries are darkest, the secondaries mosi reddish, with bright reddish under 

 surface, through a variety of shades of obscure brownish to almost entirely 



PROCEEDINGS KNT. SOC. IMI1LAD. JANUARY, 1867. 



