The latest revision of the North American Basilarchia (Gunder, 1934, Can. Ent. LXVI: 39) recognizes three races of archippus Cramer (1779, Pap. Ex. I, t. 16 a, b) i.e. a. archippus inhabiting southern Canada and the Atlantic states as far south as North Carolina and west to Illinois, a. floridensis Strecker (1878, Cat. p. 143) found from South Carolina to the tip of Florida and a. obsoleta Edwards (1882, Fapilio 2: 22) occuring in Arizona, Utah and New Mexico.

Both insects and man show marked preferences for certain strains or varieties of plants when these plants are used as food. This fact has been known for thousands of years as it applies to man, and has been just as true with respect to insects, though not fully appreciated. Go to any market where plant products are sold and you will find certain preferences (shown for special varieties; in fact, it will be difficult or impossible to sell other varieties of the same plant which, from the standpont of nutritive value, might be equal to the ones in demand.

Dr. Austin H. Clark recently drew the attention of Dr. McDunnough to the fact that specimens of Incisalia niphon from Canada differ in several respects from niphon as it occurs in Florida (type locality) and other southern localities. Dr. Clark has kindly furnished a female specimen of niphon, taken at Mt. Vernon, Va., which upon study I have found to agree quite well with typical niphon as figured by Hubner in the Zutrage Exot. Schmett. figs. 203 and 204.

For many years chemists and entomologists have been seeking the hypothetical ideal insecticide, namely, a material which is toxic to insects at an economical dosage, which is not injurious to the host plant or animal sprayed or dusted with it, and which does not leave on foodstuffs a residue that is poisonous to man or domestic animals. Certain organic compounds approach closer to this ideal than any products of mineral origin, and the successful use of these against same of our most injurious insects has greatly stimulated the testing of countless organic products for insecticidal value.

It is strange that such a distinct genus as Aulacus should not have been recognized by American workers, but there seems to be no doubt that our Pammegischia Provancher, 1883 is merely Aulacus Jurine, 1807.

The following notes will serve to supply some of the desiderata listed by Scudder for the life histories of New England Hesperiinae. Descriptions are also given when they differ from those of Scudder or when they supplement his information. Detailed descriptions are given of Poanes hobomok Harr. because it has been impossible to determine which species Scudder described under the name Atrytone zabulon Insomuch as the ranges of the two species overlap, the two were confused as one at the time of Scudder's description and the source of his material is unknown.

I have read with great interest C. W. Farstad's paper (1938) on “Thelyotokous parthenogenesis in Cephus cinctus Nort.,” since it parallels so closely my own problem in Diprion polytomum Hartig. But, whilst agreeing with his final conclusion that there are doubtless two forms of C. cinctus manifesting alternative modes of parthenogenetic reproduction in different regions of the Province of Alberta, I must nevertheless draw attention to certain statements made by this worker which appear, in the light of modern cyto-genetic knowledge, to be highly improbable.