This List is compiled on the same principle as the oxford and cambridge Accentuated List of British Lepidopiera, of which valuable little book we have made free use. A quotalion from its preface well explains our object:

“The want of uniformity in the pronunciation of scientific names, and the consequent difficulty of communication between the less educated, but often more practical men of science, is an admitted evil. To afford a remedy so far as Lepidopterology is concerned, and for the especial use and benefit of those to whom circumstances have denied the advantage of a classical education, while their inborn love of Natural History has led them to the study of this order of insects,” we have published this accentuated list of Canadian Lepidoptera.

I regret that I had not observed before writing paper No. 1, a valuable article by my esteemed friend Riley on this insect, in his last Annual Report on ihe insects of Missouri. He there speaks of effects produced by it on young pear trees in that section, precisely similar to those I described and expresses the opinion, which I also entertain, that the puncture of this iniect is peculially poisonous to the young growth on the tree. He says, “it attacks many kinds of herbaceous plants, such as dahlias, asters, marigolds, balsams, cabbages, potatoes, turnips,” &c., and several other trees, besides pear, viz., quince, apple, plum and cherry.

Late in July a number of specimens of a larva apparently allied to the genus Catocala were taken from the silver maple(Acer dasycarpum, Ehrn.) The description of this larva is as follows :

Length 1.40 inches; somewhat onisciform.

Head medium sized, flattened, bilobed; color pale ashen grey, with streaks of pale brown appearing under a magnifying lens as a fine network ; a dark brown, nearly black, stripe on each side, and a few short grey hairs scattered over its surface.

Body above brownish-grey, with numerous streaks and dots of pale brown. A double irregular dorsal line, widening here and there throughout its entire length. There are many other broken lines of the same character, composed chiefly of dots, but none of them continuous