This group contains members of several orders (Lepidoptera, Hymenoptera, and Coleoptera) that bore into the sapwood and sometimes the heartwood of weakened, fire-scorched, recently felled, or dead hardwood and conifer trees. Descriptions here include the long-horned beetles or round-headed borers (Coleoptera: Cerambycidae), the ambrosia beetles (Coleoptera: Scolytidae), the flat-headed or metallic woodborers (Coleoptera: Buprestidae), the horntails (Hymenoptera: Siricidae), and clearwinged moths (Lepidoptera: Aegeriidae). Most of these borers normally attack only freshly cut, injured, dying, or recently dead hosts. However, under certain circumstances, they can cause substantial economic losses in the form of wood degrade and volume loss.

Reference:  23, 40