1. An albino male Colias Philodice.

I received this example from Mr. H. E. Wilford, of Batavia, N.Y., last fall. Mr. Scudder, Butt. N.E., p. 1285, says:-“Instances of albinism are confined, so far as we yet know, to the Rhodoceridi” (which term he uses to include Colias, under his name of Eurymus). “and to the female sex.” In colour this male is white, with no tint of yellow; the borders of both wings are of median width, and solid—in all respects like the usual border of the yellow male.

In 1874 Mr. Scudder published his paper on “The Species of the Lepidopterous Genus Pamphila” in the Memoirs of the Boston Society of Natural History, in which the following species were described as new:-Nevada, Colorado and Manitoba, and Sassacus; Ottoe, Juba, Comma of Europe, and Sylvanoides were also treated of.

Myelois fructetella, n. sp.—Expands 16–18 mm. Head dark fuscous; maxillary palpi fuscous, becoming black on end member. Antennaæ and thorax fuscous-gray to dark fuscous; abdomen yellowish-fuscous, ringed with dark fuscous on anterior part of each segment; forewings light gray, heavily marked with fuscous and black; base to basal line, with black scales, which become very heavy within basal line along inner margin; middle field much darkened on posterior half, with fuscous continuing along both lines, broad and black at costa along basal line, and narrow and black at costa along outer line; outer field broadly black along costa outside of outer line, becoming lighter posteriorly and along outer margin; fringe very light gray; basal line white, straight in direction or somewhat denated, near middle distinct; outer line less distinct, with a large but not deep sinus outwardly at middle; hindwings translucent fuscous becoming darker at edges.

The Tachinidæ herein described and mentioned are from the more northern parts of the U.S.; from Colo., Kan., Dakota, Iowa, and Minn. to Ills., Mich., Pa., N.Y., N.H. and D.C.

It is generally understood, I believe, that to get eggs the requisite plant must be also enclosed in the gauze bag with the female insect. Such is often, but not always the fact, and it will lighten the labours of the biologist and simplify his methods if a more correct statement be made. That one genus of butterflies should not use or require living plants to receive their eggs, while others will fret and die without ovipositing if their peculiar plant be withheld, indicates a relationship, or gives a hint as to grouping of genera upon natural lines.

On page 138, Vol. XXIII., is mentioned the finding, in rotten logs, of colonies of this species. The fate of the speciments taken on 30th April may be related. Unfortunately the individuals then taken were not counted, but they consisted of workers and larvæ, the latter being more numerous. The box was examined on 1st June and it was found that many of the larvæ had formed cocoons, and that the remainder were feasting on a green caterpillar, which had been dragged down into the nursery.