Abbé Provancher in his work on the Coleoptera of Canada, page 585, gives a brief description of an insect he calls Criocephalus obseletus, Rand, and adds that it is very common.

After a careful reading of his description, I have come to the conclusion that it can not apply to Criocephalus obsoletus, but to Asemum mœstum, a common longhorn throughout eastern Canada. C. obsoletus is a much rarer insect in Canada, and, in fact, I have no record of its having been captured in the Province of Quebec; it is not even mentioned by Mr. Harrington in his list of Ottawa Cerambycidæ