Subcortical-predator

Guides

• Medetera bistriata

  Medetera bistriata is a species of long-legged fly in the family Dolichopodidae. Adults are commonly observed on tree trunks in pine forests, where they adopt a characteristic tiptoe posture. The larvae are specialized predators of bark beetles, particularly species in the genera Dendroctonus and Ips. The species is recognized as an important biological control agent of the southern pine beetle (Dendroctonus frontalis).

  Dolichopodidaelong-legged-flybark-beetle-predatorbiological-controlpine-forestsubcortical-predatorforest-pest-managementNearcticsignaticornis-pinicola-group

• Thymalus marginicollis

  Bark-gnawing Beetle

  Thymalus marginicollis is a species of bark-gnawing beetle in the family Thymalidae (sometimes historically placed in Trogossitidae). The species was described by Chevrolat in 1842 and occurs across much of Canada, with records from Alberta, British Columbia, Manitoba, New Brunswick, and Newfoundland. As a member of Thymalidae, it belongs to a small family of predatory beetles associated with woody substrates.

  bark-gnawing-beetleThymalidaeCanadian-faunaforest-beetlesubcortical-predator