What people are saying - Write a review
We haven't found any reviews in the usual places.
Genus l5 Pscudohylesinus Sw Includes several primary
Cryphalus Erichson Very small bark and timber
4 other sections not shown
2nd interspace Abies Abies lasiocarpa adults ambrosia beetles antennal club apex arcuate Ariz Arizona asperities B.C. Hopp bark beetles basal Blackm breeds British Columbia broadly rounded brood Calif California carina Chamb coarse Colo Colorado cones Dendroctonus disc distal distinctly Douglas fir egg galleries egg tunnels Eichh elytra Elytra with strial elytral declivity Elytral interspaces elytral punctures elytral striae epistomal feebly flattened front of head Genus Gnathotrichus granulate head in female Hopk impressed interspace on declivity Jeffrey pine larvae larval mines lateral convexities length lodgepole pine long hairs longer than wide male Mann margin median Mexico moderately monticolae narrower narrowly rounded nearly Oregon Paratype Picea Pinus contorta Pinus ponderosa Pityophthorus pronotum Pseudotsuga pubescence segment serrate sides Sitka spruce slender slightly sparsely punctured spruce stout strial punctures sulcate suture suture and lateral Swaine teeth transverse trees Tsuga twigs of Pinus Type usually wood