Recently I received for identification a series of an Olethreutes species from Mr. K. Bowman of Edmonton, Alta., which I was inclined to place as small nordeggana McD. Mr. Bowman, however, called my attention to the fact that whereas at Nordegg, with a greater altitude than Edmonton, nordeggana is taken about the middle of July; the present species does not occur around Edmonton until early August.

Smicronyx utilis is a small curculionid beetle which in Saskatchewan breeds in the seeds of Iva axillaris Pursh., or poverty weed. The weed is a native perennial found from the Saskatchewan-Manitoba border to British Columbia and south to Mexico. Although not as prevalent as some of the other bad weeds, it is one of the most persistent and one of the most difficult to eradicate. Owing to the fact that, in Saskatchewan, the percentage of infestation in well-developed seeds is very high, the plant appears to spread by rootstocks only. This facilitates eradication considerably.

This cockroach was found on November 2 last in a house in the City of Montreal by Mr. E. R. Bellemare. Immature individuals as well as adults were numerous.

Following are comments, descriptions, or new information on species of Nearctic Tabanidae, anticipating compilation of a catalog of the family for the region. Also included is a description of a new species from Mexico which may be taken ultimately in the extreme southwestern United States.

The following notes and descriptions result partly from this summer's collecting by Mr. L. R. Rupert and myself and from previous studies in the group.