Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
Letzner, K. W. 1880. Uber das Auftreten des Scolytus pruni und rugulosus Ratzb. an Aepfelbaumenbei Namslau. Schlesische Gesellschaft fur Vaterlandische Kultur, Breslau 57:344, 355-356.
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