Yrias Volucris, n. s.

♂. Allied to Repentis, the lines having the same general course, but they are brown, not balck, and the ground color is darker. The space included by the discal rounding of the t. p. line is not so large. The reniform shows a black included streak and the black costal dots on median space are as in its ally. the angles of the t. a. line are less sharp. There is a minute apical balck mark on the margin, before which a paler shade, an approximation to the ocellate mark of Clientis. On hind wings the distinct black mesial line is wanting. Beneath the wings are paler at base and the lines very faint. Expanse 26 mil. Arizona. B. Neumoegen, Esq.

Through the kindness of the author, we have been favored with a copy of the above paper, which embodies the results of a very laborious series of microscopic examinations of the contents of the alimentary canal of insects belonging to the Carabidæ and Coccinellidæ. In the Carabidæ the results of the dissection and study of 175 specimens are given, representing 38 species and 20 genera. Of the Coccinellidæ, the results of the dissection of 39 specimens are given, accompanied by carefully compiled tables presenting the evidence in the most convenient and accessible forms. Prof. Forbes' experiments show clearly that the opinions hitherto held by Entomologists as to the food of these insects are in many respects incorrect.

The habits of these larvæ in Europe may not improbably differ in some respects from the habits in America. Our hot summers, as compared with England, at least, may compel more or less change. With us, speaking of my own district, and of the False Nettle, Boehmeria, as the food plant, the eggs I believe to be always laid on the young terminal leaves, as Dr. Harris states is the case with the Nettle, Urtica. I come to this conclusion, not because I have found eggs on the terminal leaves, for I do not remember that I have ever found an egg of Atalanta laid by a free female; but because the larvæ, in first stage, have always been observed on these leaves. I have repeatedly obtained eggs from females tied in bags over the food plant.