At the Annual Meeting of the Entomological Society of Ontario in October, 1885, I read a brief note on Oryssus Sayi, which was afterwards publihsed in the Canadian Entomologist (vol. xviii, page 30). It recorded the capture of two ♀ and one ♂ on cedar telegraph poles, and suggested that they might have emerged therefrom. During the arly summer of 1886, I added several specimens of Oryssus to my collection, and what is of much more importance, succeeded in gaining a more definite knowledge of the habits of our species. As no account, other than the brief note just cited, has ever appeared in the Entomologist of these handsome and interesting insects, I propose to give a brief paper upon them.

During the years 1875, 1876 and 1877, Mr. F.B. Caulfield published in the Canadian Entomologist lists of the Lepidoptera occuring at Montreal and vicinity, as far as the end of the Bombycidæ. Since that period the following species have been taken here, and are now added so as to make the list as complete as possible to date. Chateauguay is on the south shore of the St. Lawarence, directly opposite the upper part of the Island of Montreal, and only a few miles distant.

Last season being but a poor one for the Lepidopterist in this locality, I got but little that was new to me in this department. Being in communication with Prof. Fernald about the few I had in duplicate, I proposed to send all my single specimens to him, to name what he could and return them to me again. The professor most generously consented to the very exacting conditions, and returned my insects, which made the double journey by express, without a break, accompanied with the following names:-

1. Palpares inclemens Walk., p. 303, No. 4.

This is one of the largest species. Length of body, male 75 mm.; fem., 60; exp. al., 145–160 mm. I have before me a couple collected by Dr. Krauss, Stuttgart, on Cap. b. sp., from the collection of the late Dr. Schneider, Breslau; and two females from Zanzibar, collected by Mr. C. Cooke, Salem, and a female from Zanzibar Island, from Mr. Thorey, Hamburg. It belongs to this species, P. latipennis, Gerstaecker, Insects from Zanzibar, 1873, p. 55; a female from the Galla land, 2° latit., which is compared with the male described by myself in Peters' Voyage, P.99.