Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
Rabaglia, R. J. 2005. The validity of Xyleborus impressus Eichhoff (Coleoptera: Curculionidae: Scolytinae) as distinct from Xyleborus ferrugineus (Fabricius). Coleopterists' Bulletin 59:261-266.