. Eastern forest insects. Forest insects. F-519914 FiCxURE 168.—Gall produced on willow by the willow beaked-gall midge, Mayetiola rigidae. F-519915 Figure 167.—Damage to paper birch by the cecidomyid, Oligo- trophies papyrifera. 420. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Baker, Whiteford L. (Whiteford Lee), 1903-. Washington : U. S. Dept. of Agriculture, Forest Service ; for sale by the Supt. of Docs. , U. S. G.
. Eastern forest insects. Forest insects. F-519914 FiCxURE 168.—Gall produced on willow by the willow beaked-gall midge, Mayetiola rigidae. F-519915 Figure 167.—Damage to paper birch by the cecidomyid, Oligo- trophies papyrifera. 420. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Baker, Whiteford L. (Whiteford Lee), 1903-. Washington : U. S. Dept. of Agriculture, Forest Service ; for sale by the Supt. of Docs. , U. S. G. P. O
Size: 1499px × 1667px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookcollectionbiodive, booksubjectforestinsects
