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NOTES ON THE AMERICAN FORMS OF EUCHLOE, Hubner
Published online by Cambridge University Press: 31 May 2012
Extract
In answer to Dr. Butler's comments (Can. Ent. XXXI., p. 19) upon my revision of the species of Euchloé (Bull. Am. Mus. Nat. Hist., X., pp. 235-248), I could state that Dr. Butler may possibly be right in considering creusa (var. elsa), hyantis and lotta seasonal forms of ausonides, but with the present knowledge it is not possible to place them so, and for this reason I concluded it would be best to allow the species to remain distinct until more light could be obtained on the subject. At any rate I was certain that what we had labeled in our collections as creusa was not Doubleday and Hewitson's species, which Dr. Butler definitely asserts is my var. elsa.
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