In the spring of this year I commenced collecting the Nectuæof this part of Canada, and in the hope that a list of my captures, with the dates of appearance, may be of interest, I venture to send the same for publication.

Being a stranger to the insect fauna of N. America, and in the absence of anything like a manual of the Heterocera, I shouls, even with the assistance of the Brit. Mus. Catalogues and Gueneæ's work, have had great difficulty in identifying my specimens.