Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
Faucheux, M. 1989. Morphology of the antennal club in the male and female bark beetles Ips sexdentatus Boern. and I. typographus (L.) (Coleoptera: Scolytidae). Annales des Sciences Naturelles, Zoologie, Paris 10:231-243.
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