The bionomics of Medetera aldrichii Wheeler (Diptera:
Dolichopodidae), a predator of the Douglas-fir beetle (Dendroctonus
pseudotsugae Hopkins (Coleoptera:Scolytidae)), was investigated
in western Oregon.
The predator pupated in host galleries proximal to bark beetle
ventilation holes. The tendency of prepupal larvae to form pupal
cells near illuminated areas in a photo-response...