| dendroctonus | (n) genus of small bark beetles destructive especially to mature conifers, Syn. genus Dendroctonus |
| spruce bark beetle | (n) small beetle that likes to bore through the bark of spruce trees and eat the cambium which eventually kills the tree, Syn. Dendroctonus rufipennis, Example: the spruce bark beetle is the major tree-killing insect pest of Alaska spruce forests |