The Nearctic Forms of Lycæides Hüb. (Lycænidæ,Lepidoptera)

What follows is a brief summary of some conclusions mainly relative to the classification of the American forms of Lyceides Hiibner, 1823 (Plebejine).This genus comprises at least half- a-dozen structural (genitalic) unities which may be termed species, .and a full .account of its morphology will be published in due time.Except in one inevitable case, no new names are introduced, as it is felt that further study might result in some equilibrium of the variational scheme in Lycveid'es, so .as to avoid .achaotic accumulation of poorly balanced "subspecies."Owing to the abundant Holarctic material in the Museum of Comparative Zo/51ogy, and thanks to generous loans from the American Museum .ofNatural History and from private col- lections (I have especially to thank Mr. H.K. Clench and Mr. Don B. Stallings), a considerable number of specimens could be examined; of these, some 350 were dissected and measured.Three specific categories may be distinguished as affecting the classification of the Nearctic forms" argyrognomon Bergstrisser, 1779, Nomencl. 2