The accompanying figures shows the curculio in all its stages. a, is the larva, b, the chrysalis, c, the perfect beetle, all magnified, the adjoining lines shows the natural size, d, is a small plum with the curculio (natural size) working on it. One egg is deposited under the crescent cut, and a second incision is being made. I shall now refer to some experiments of my own on this insect which will, I hope, add something to our knowledge of the creature's habits.

This butterfly appeared earlier than usual with us last year. It is not seen on the wing sooner than the 10th or 12th of June, but this season they were tolerably common as early as the 1st, and probably had been then flying for several days. The delight in the sunny openings found oftimes in partially cleared woods, also in wooded lanes and roads and the sunny edges of the forest, where by their peculiar jumping flight they may be readily recognized, sometimes singly, at other times sporting in twos and threes. For the first few days the specimens capturad will be found to be nearly all the male sex, but after this the females begin to appear and both sexes are found together during the remainder of their short season of life which does not usually extend beyond the first week in July.

51. Amara Vulgaris, Latr.—Length of body 4 to 4½ lines. Many specimens taken in lat. 65°, and in the Rocky Mountains.

Body black, glossy; above black-bronzed. Scape of the antennæ piceous; inner lobe of the maxillæ, and first joint of the outer palpi, testaceous ; basilar impressions of the prothorax double, deepish, impunctured, the external one oblique; channel abbreviated anteriorly, with a punctiform impression beyond the middle : furrows of the elytra lightly drawn, indistinctly punctured ; apex subacuminate or suddenly narrowed : legs black, with the hairs, spurs and claws testaceous. Variety B. Bright, bronzed with a cupreous tint.

A single specimen of the larva of this insect was taken crawling on a fence on the 1st of October, 1866. It must be very rare in this locality, as I had never seen it before, nor have I observed it since, nor ever captured a specimen of the imago, which is very handsome. Food plant unknown. Length 1.20 in., cylindrical. Head medium sized, rather flat, slightly bilobed, of a pale greenish-white color, with a large patch of black on each lobe above and a smaller one below just above mandibles. Mandibles black, with a stroak of white on each. Body above pale greenish-white, semi-transparent, with transverse rows of tubercles of the same color, from which arise tufts of long, fine, silky, white hairs.

on the 21st of July at a quarter past seven in the evening we were passing around among the currant and gooseberry bushes watching the manipulations of a few of those well known foes, the larva of Nematus ventricosus. They were feeding away voraciously with perennial appetites, when a disturber of their peace appeared among them in them of a small black ichneumon fly which fastened itself on the body of one of their number, and began to deposit its eggs by means of a sharp ovipositor, dexterously thrust through the skin of its victim, whose jerks and writhings while indicating a very uneasy state, failed to shake off the tormontor.