THE CANADIAN ENTOMOLOGIST. 219 



species ; and concluded thus : " Mr. Mead brought from Colorado, in 

 187 1, a Colias very close to this from Lake Lahache, and which in 

 Reakirt's paper on the Butterflies of Colorado (Pr. Ent. Soc. Phil., 1867, 

 p. 14) is doubtless the one called Philodice. The same form was brought 

 from Montana, by Dr. E. Coues, when engaged in the Boundary Line 

 Commission. For the present I shall give no opinion as to these, but 

 they seem to me nearer Eriphyle than to Philodice" In this last expres- 

 sion I was right. The under sides of the Eriphyle were quite free from 

 markings, sometimes completely so, except the discal spots, but some ex- 

 amples showed more or less of the sub-marginal spots and the other patches 

 which are found in both Philodice and Eurytheme Now on comparing 

 the 12 examples of Eriphyle still remaining in my collection with ex- 

 amples of Hagenii, there is no doubt of the identity of the two. I can 

 match every Eriphyle by a Hagenii in either sex. The name Hage7iii 

 therefore is sunk, and this form will be known in future as Colias Eury- 

 theme, tetramorphic form Eriphyle (pronounced E-riph'-y-le). 



The following letter, referring to above, is of importance as showing 

 that twice Mr. Edwards came to the same conclusion independently con- 

 cerning this species. — Editor, per J. F, 



Coalburgh, W. Va., 24th Oct., 1887. • 

 The Editor Canadia?i Entomologist : 



My Dear Sir. — To-day, in clearing some loaded shelves, I came on a 

 bundle of Dr. Coues' Reports " On the Collections of Insects made by 

 Dr. Elliott Coues, U. S. A., in Dakotah and Montana, during 1873 and 

 1874" — Washington, 1878 j of which I supplied the paper on Lepidop- 

 tera. And to my surprise, for I had quite forgotten particulars of the 

 paper, not having looked at it for years, I find that I therein named the 

 Colorado Colias, afterwards called JIagenii, as Eriphyle. The paper 

 was written several years before it was printed, so that this description of 

 Eriphyle really preceded the one printed 1876, Tr. A. E. Soc, and is 

 headed Colias Eriphyle Edw., new species. After describing it I added 

 these lines : 



" I first received examples of this species from Mr. T. L. Mead, who 

 took them in Colorado, in 1871, and was disposed to regard them as a 

 variety of Philodice. Subsequently I received about 50 specimens, taken 

 by the late G. R. Crotch, in British Columbia, and later, 1874, several 

 specimens, which were taken by Mr. Pywell on the line of the Northern 



