Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
Weslien, J., and J. Regnander. 1992. The influence of natural enemies on brood production in Ips typographus (Col Scolytidae) with special reference to egg-laying and predation by Thanasimus formicarius (Col: Cleridae) . Entomophaga 37:333-342.