On the 29th July last, while beating along the margin of a small stream, I found on my net a larva which had apparently fallen from an alderbush and which was unknown to me. I took it home, but it refused to feed upon alder, and I was unable to identify it and find out upon what to feed it. The only descriptions I had at hand were those of Mr. Reed in Annual Report for 1881, and no one of these seemed to answer. Finding that it refused every plant which I offered to it, and yet did not seem prepared to pupate, I put it in spirits, which, however, so discolored and shrivelled it that I threw it away. While it was alive I made the following brief note of its appearance: Light green, whitish on back, covered all over with white dots edged with black, but these most conspicuous on thoracic segments and substigmatal surfaces. Head granulated, margined by yellow and black line. Legs pink, stigmata orange fawn-color.