Catalogue of exhibits of insect enemies of forests and forest products at the Louisiana Purchase Exposition, St Louis, Mo., 1904 . Fig. 2.—Destructive Pine Bark-beetle. a, Adult beetle, enlarged; b, adult, natural size; c, pupa, enlarged; d, larva, enlarged; e, younglarva, enlarged; /, egg, enlarged; g, larva, natural size. (After author, in Bulletin No. 56,West Virginia experiment station.). Fig. 3.—Spruce-destroying Beetle. a, Dorsal view of adult beetle; 6, side view of larva; c, dorsal view of pupa—all greatly enlarged; d, natural size of beetle.(From Yearbook, U. S. Dept. Agriculture, 190
Catalogue of exhibits of insect enemies of forests and forest products at the Louisiana Purchase Exposition, St Louis, Mo., 1904 . Fig. 2.—Destructive Pine Bark-beetle. a, Adult beetle, enlarged; b, adult, natural size; c, pupa, enlarged; d, larva, enlarged; e, younglarva, enlarged; /, egg, enlarged; g, larva, natural size. (After author, in Bulletin No. 56,West Virginia experiment station.). Fig. 3.—Spruce-destroying Beetle. a, Dorsal view of adult beetle; 6, side view of larva; c, dorsal view of pupa—all greatly enlarged; d, natural size of beetle.(From Yearbook, U. S. Dept. Agriculture, 1902.) Bui. 48, Div. of Entomology, U. S. Dept. of Agriculture. Plate II.
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectinsectp, bookyear1904
