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A grape-vine leaf gall-louse. The insect forms galls on the under side of the grape-vine leaves, and although they appear to do comparatively little injury to the vine, they are extremely interesting to vine-growers.


bugs, aphis, Aphids


Report of the Commissioner of Agriculture of the Operations of the Department for the Year 1876 (Washington: Goverment Printing Office. 1877) 40


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