Scierus


Type species

Scierus annectens LeConte

Adapted from Wood 1982, p. 79-81


Diagnosis

Among the subtribe Hylastina, Scierus can be easily distinguished from Hylastes Erichson and Hylurgops LeConte by having widely separated procoxae and by the vestiture consisting of paired interstrial rows of short, recumbent, hair-like setae.


Description

Species in this genus range from 2.7 to 4.3 mm in length and are approximately 2.2 to 2.3 times as long as wide. Their color ranges from yellowish brown to reddish brown. The pronotum is wider than long and unarmed. The scutellum is small. The declivity is convex with the same vestiture as the elytra, which consists of a double row of short, recumbent interstrial hair-like setae and granules. The anterior margin of the compound eye is entire. The club is as long as the 7-segmented funicle. The ovate club has three straight sutures. The procoxae are separated.


Distribution

New Mexico to British Columbia, and eastward to Quebec


World fauna

Number of species: 2, Native species: 2, Introduced species: 0


Hosts

Abies, Picea, Pinus, Pseudotsuga