Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
Hopkins, A. D. 1909a. Contributions toward a monograph of the scolytid beetles, I. The genus Dendroctonus. United States Department of Agriculture, Bureau of Entomology, Technical Bulletin 17(1). 164 p., 8 pls., 95 figs.
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