The paper published Canad. Ent., vol. xi., p. 110-14, was reprinted with some additions as a pamphlet, Cambridge, December, 1879. The recorded experiment on the Potato Bug made by Mr. James H. Burns, proved evidently the poisonous character of the yeast-fungus. The fifty beetles which were sprinkled with it died mostly on the eighth day, and the rest in the four following days.

Length when at rest, 1.25 inches; in shape tapering slightly from the middle forward, but more rapidly from that point backward ; the body deeper than broad. General color bright clear green, a little spotted with white, marked as follows : head gray, a little lighter through the centre ; joint I contains two dark purplish black warts on the dorsum, reddish purple at the base, the space between them whitish.

Schinia gracilenta, 8, fig. 5-6.

“Georgia.” I have identified this species among Belfrage's Texan collections.

Drasteria graphica, 8, fig. 11-12.

“Georgia.” The hind wings are rusty-yellow, “rostgelb”; whether it is the species which passes under the name in our collections might admit of some doubt from the color of secondaries, but the s. t. line is followed by pale dots on the veins as in graphica ; the band on hind wings is broken in the figure.

Xylomiges dolosa, n. s.

Professor C. H. Fernald has sent me a fresh female specimen which evidently belongs to an undescribed species of Xylomiges, and for which I propose the specific name dolosa. The species is black and grayish white, the black dull and lustreless. Eyes hairy, abdomen a little flattened, the tufts are not discernible.

Ariane.—I have not seen Dr. Boisduval's type of Ariane (many of his types of American butterflies he sent me), but the species is easily recognized by his description. He says it is size of Phædra (or like Nephele), in color brown-black ; the fore wings with two black ocelli pupilled with white and with pale irides ; 6 small ocelli on hind wing below, pupilled with white and circled by fulvous ; the same wing crossed by two sinuous black lines ; the females with large ocelli having yellow-fulvous irides ; the small ocelli much less distinct than in the male.

It is to the Hymenoptera that the student must look for the most varied and interesting phases of insect life. Here he finds numerous avocations conducted with much intelligence, and in many families sees strong social instincts developed. It is not, however, of these latter that I intend now to speak, but of a few solitary ones. Even those just entered upon the study of insect life must be fully aware of the continual destruction of our fruit and timber trees, both alive and in process of manufacture, by the boring, wood-eating larvæ of various insects.