1864.] 207 STATED MEETING, September 12. President Bland in the Chair. On report of the respective Committees, the following Papers were ordered to be published. ON CERTAIN ENTOMOLOGICAL SPECULATIONS OF THE NEW ENGLAND SCHOOL OF NATURALISTS. BY BENJ. D. WALSH, M. A. I. In Prof. Agassiz's Book on Lake Superior, he asserts in the most unqualified manner that the Insects of the temperate zone of North America " differ specifically throughout" from those of Europe. And subsequently he remarks that '' quite a number of European insects have been introduced into this country along with plants, among which may be mentioned some showy butterflies, as V<tnessa Atalanta, car dm and Antiojxi, which are very erroneously considered by some entomo-logists as native Americans." (Pp. 187, 190.) This assertion is the more startling, because he himself catalogues in the same work a very great number of plants as common to the tem-perate zones of North America and Europe, some of which he consid-ers as introduced, while at the same time he distinctly states that he does not intend to deny the fact of others being indigenous both in North America and in Europe, (t'hid p. 187); and because the very same work that contains the above remarks contains also a list of Coleoptera by Dr. LeConte, in which several species are enumerated as in his opinion common to both Continents,* and at the conclusion of which it is expressly asserted by that author, that there are certain rare cases in which " the same species, or organic forms so similar as to present * E. g. Bembidium i-maculatum Lin., Upis ceramboides Fabr., Sippodamia 13-pictictata Lin., and Coccinella Ib-punctata Oliv.
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