26" THE CANADIAN ENTOMOLOGIST. 



much of British America, and like that species, which it resembles in 

 every respect but in color, it is subject to great and extreme variation, 

 there being no feature whether of size or ornamentation that is not 

 unstable." 



At the close of this notice he said '(page 116): "The butterfly 

 figured on Plate of Keewaydin, in vol. i., as No. 7, supposed to be a 

 variety of that species, is regarded by Mr. Henry Edwards as distinct, 

 and has recently been described by him as C. Harfordii" 



C. Harfordii was described from seven males by Mr. Henry 

 Edwards, in 1877, in Proc. Cal. Acad. Nat. Sci., and at the same time C. 

 Barbara was described from two females, but subsequently he came to 

 the conclusion that they belonged to the same species, in which opinion 

 Mr. W. H. Edwards acquiesced. In "Papilio," in., p. 160 (1883) Mr. W. 

 H. Edwards described Col i as Hagenii, and said of it that it was close to 

 Eriphyle and lay between Philodice and Eurytheme, "the four species 

 making a sub-group." 



In Can. Ent., xix., p. 174, Mr. Edwards said: " Hagenii is known to 

 fly throughout the Rocky Mountain region, from Colorado to British 

 America. * * and I think it probable the yellow form 



accompanies the orange over much of the territory occupied by the latter. 

 On the plains to the east of the mountains these would have been 

 regarded as Philodice by collectors. The yellow male figured in' But. N 

 A., vol. i., on plate of Colias Keewaydin, fig. 7, is Hagenii, a very small 

 example." 



Now if this same much abused butterfly, known as fig. 7, is both 

 Harfordii, of which, as I have mentioned, Barbara is a variety, and also 

 Hagenii, and if taken east of the mountains would be regarded as 

 Philodice, and that Hagenii is Eurytheme and also Eriphyle, it must 

 follow not only that Eurytheme, Eriphyle, Hagenii, Harfordii and 

 Barbara are one and the same species, but also that it becomes 

 extremely difficult to separate Philodice from the same group. In con- 

 nection with this it should be remembered that at least two well marked 

 specimens of Eurytheme have been taken in this Province, one, a female, 

 at Quebec, by the late Mr. Bowles, and another, a male, at Montreal, by 

 Mr. C. W. Pearson, and that specimens of Philodice slightly suffused with 

 orange do occasionally occur. 



