From the heart of the Sierras, in California, comes a new mosquito of the genus Taeniorhynchus, which is here described:

Taeniorhynchus Sierrensis, n. sp.—æ. Head brown, a median line of white curved scales extending up between the eyes, immediately followed laterally by a patch of flat brown scales, a narrow white stripe laterad, followed by a brown stripe, narrow white line around the eyes, white forked and curved scales on the occiput; the general effect is of two brown submedian spots, and the curved scales are confined to this comparatively narrow median line; antennæ brown, and white not really banded, giving the effects of white bands, verticels brown, pubescence white, basal joint white scaled; palpi brown with white tips, and a narrow light band about midway; proboscis dark brown, clypeus brown, eyes brown.

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