In Butterflies of N. A., Vol. 2, Part 8, 1879, I gave the history of Arthemis, and stated that it was single-brooded ; that the first butterflies of the season appear in the Catskills about the end of June; that they are abundant during July; that the eggs are laid last of July and early in August; that the larvæ from these eggs pass two moults and then go into lethargy in cases of their own construction ; that they come from these cases in spring and moult twice before chrysalis.

Gelechia Chambersella.—In some notes on the larvæ of certain Tineids, published in Vol. vi., No. 12 of the Canadian Entomologist, I referred to an interesting species found on Ambrosia artemesiæfolia, which I proposed soon to describe under the above name. The description was indefinitely delayed by a vexatious accident by which I lost all my perfect specimens.

This long promised and lately issued book wants little that the skill of artizan or the genius of artist can furnish. The Entomological brotherhood—those lovers of the net and flask, who, gentler than the historic angler, impale not even a worm until it has become insensible to pain—they and the general public will find some store of delightful reading within its pages.