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Filtering by: Creator McDonnell, Jeffrey J. Creator Hopkins, A. D. (Andrew Delmar), 1857 1948 Decade 1900-1909

Catalogue of exhibits of insect enemies of forests and forest products at the Louisiana Purchase Exposition, St. Louis, Mo., 1904

Creator:

Hopkins, A. D. (Andrew Delmar), 1857-1948 and United States. Division of Entomology

Resource Type:

Technical Report

Full Text:

Cascade region. Common. EXHIBIT: Adult and work. 15. The Jeffrey Pine Twig-Beetle (Pityophthorus n. sp