Nothing has been known of the history or earlier stages of this butterfly till quite recently, except what Boisduval and LeConte (1833) gave, both plate and text having been copied from Abbot (about 1800). On the plate the mature larva is represented as lying on a leaf of Hawthorn, and the chrysalis is attached to a stem of same. The larva is green and white-striped, and neither in coloration nor shape resembles the real larva, and the description in the text is made up from the figure. The chrysalis is a little better. The larva (according to Abbot) “lives upon Cratægus, and the species is very scarce.” We also read that “this butterfly is plainly quite unlike the true Polyommati in its caterpillar and the shape of its chrysalis. Godart, who knew this species only by the description of Fabricius, wrongly believed that it was an Erycina.” Boisduval puts it in Polyommatus with Phleas.

A small round box of bamboo (8 by 6 inches) was bought nine years ago in Hong Kong, China, and brought home to Boston. It was placed on a little shelf on the wall, and used for Turkish tobacco. The box was lined inside with a perfectly closing box made of East Indian block-tin, about a millimetre thick. I examined the box January, 1885, and found it hollowed throughout like a sieve, and containing between the tin box and the bamboo cover a large number of dead and living beetles and two living larvæ. The tin box had four small round holes apparently cut through by the insects. The beetles represented two species, one, a little larger, only two specimens, all the others belonging to the second specres.

The sub-family Anthracina differs from any other of the Bombylidæ, as well as from any other group of Diptera known to me, in that the second vein issues from the third at a point opposite or nearly opposite the small cross-vein, the distance being never greater than the length of that cross-vein; the course of the third vein at the place where the second vein issues from it, is perfectly straight, while in the other Diptera the third vein bends obliquely downward at the same angle that the second vein extends upward at its base.

The two galls of the Tulip tree described by Osten Sacken. Monogr., Vol. I., p. 202, No. 26, C. liriodendri n. sp., and No. 27, C. tulipifera n sp., were wanting in the collection of his types presented by the Baron to the collection of the Museum in Cambridge. I am glad to state that I collected one of them in considerable numbers on leaves from a young Tulip tree on Quincy Street, Cambridge, in October, 1885. But all those galls were burst open along a part of the margin, and were empty. Prof. G. W. Farlow presented some collected in Newton, Mass., Oct. 12, 1886, and I found the living, full grown larva in one gall. r remembered then the tree in Cambridge, and found the same galls numerous, but again all empty. Apparently the larva has to be collected in the beginning of October, or somewhat earlier.