. Elementary entomology . striped cucumber-beetle (Diabrotica vittatd] is about the same size, bright yellow with black stripes, and is one of the worst pests of young cucumber and melon vines. The larvae are long, slender whitish grubs which feed on the roots. The twelve-spotted Diabrotica is green with twelve black spots, with similar food habits in the adult stage, but in the )tnpec $outn tjie iarvae do serious injury to the roots of cucumber-beetle J J corn, while the larva of another pale green species, known as the west- ern corn rootworm, is one of the worst pests of corn in the norther
. Elementary entomology . striped cucumber-beetle (Diabrotica vittatd] is about the same size, bright yellow with black stripes, and is one of the worst pests of young cucumber and melon vines. The larvae are long, slender whitish grubs which feed on the roots. The twelve-spotted Diabrotica is green with twelve black spots, with similar food habits in the adult stage, but in the )tnpec $outn tjie iarvae do serious injury to the roots of cucumber-beetle J J corn, while the larva of another pale green species, known as the west- ern corn rootworm, is one of the worst pests of corn in the northern Miss- issippi Valley. A large group of small species, with strong hind legs which en- able them to give FIG. 224. A, potato flea-beetle ; /?, egg-plant flea-beetle. (Both greatly enlarged) (After Chittenden, United States Department of Agriculture)
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