. Elementary entomology . Fig. 173. Grape leaf-hoppers. (Much enlarged) a and b are female and male of typical comes variety ; c represents the vitis variety ; rt', newly hatched nymph ; e, last stage nymph ; /, injured leaf; g, cast skins. (After Marlatt, United States Department of Agriculture) 126

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Keywords: ., bookcentury1900, bookdecade1, booksubjectentomology, bookyear1912