No. 2305. ON SOME FOREST LEPIDOPTERA—HEINRWH. 55 



the termen and apex are the same color in both, that is, a pale, 

 brownish yellow. The face scalings of the Pseudotsuga moths are the 

 same as those of colfaxiana, while those of the Alies specimens are 

 almost pure white. These differences I am convinced are only super- 

 ficial and due most probably to the difference in food plant. I have 

 made a carefiil study of the male genitalia of all the forms from 

 Pseudotsuga and Apies and find them strikingly alike. The cucuUus 

 of the harpes is slightly different in extreme forms of taxifolieUa, 

 sisMyouana, and colfaxiana (slightly smaller and more sharply trian- 

 gonate in the first and third than in sislciyouana) , but there is less 

 difference between them than between any two males of the typical 

 sislciyouana. I am inclined, therefore, to consider them only as local 

 and food plant varieties of one and the same species. Inasmuch as 

 the Colorado variety is different from those of California, Oregon, 

 and Montana and forms such a decided connecting link between the 

 contrasted Abies and Pseudotsuga specimens, I am proposing for it 

 the following varietal name. 



EVETRIA COLFAXIANA COLORADENSIS, new variety. 



Plate 1, fig. 2. 



Halitat. — Mount Manitou, [type locality] (J. H. Pollock, W. D. 

 Edmonston, G. Hofer, and A. B. Champlain), Cheyenne Canyon, 

 (Edmonston, Pollock, and Hofer), Williams Canyon (W. D. Edmon- 

 ston), and Garden of the Gods, Colorado (G. Hofer). 



Food Plants. — Ahies concolor and Pseudotsuga taxifolia. Male type 



reared from larvae feeding in cones of Ahies concolor (Hopk. U. S. No. 



14212a) and paratypes from cones of A. concolor and Pseudotsuga toa;i- 



/oZm(Hopk.U.S.Nos. 12413a, 12562a, 12563a, 12567a, 12574a, 132S3a). 



Type.— C&t. No. 21797, U.S.N.M. Male genitalia figured. 



With the addition of this new variety our amended list of colfaxiana 

 varieties will read as follows: 



EVETRIA COLFAXUNA COLFAXIANA Kearfott. 



Larvae in cones of Pseudotsuga (Oregon and California). 



EVETRLA COLFAXIANA SISKIYOUANA Kearfott. 



Larvae in cones of Ahies (Oregon and California) . 



EVETRIA COLFAXIANA COLORADENSIS, new variety. 



Larvae in cones of Pseudotsuga and Ahies (Colorado). 



EVETRIA COLFAXIANA TAXIFOLIELLA Bnsck. 



Larvae in cones of Pseudotsuga (Montana). 



EVETRLA ULTERIORANA, new species. 



Plate 1, fig. 1. 



Labial palpi ashy grey brown, darker above. Antennae greyish 

 brown. Face, head, and thorax brownish dusted with ashy grey. 



