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Extension > Garden > Diagnose a problem > What insect is this? > Garden Pests > Caterpillars, maggots, grubs, and similar immature insects - Under than 1/4 inch long > Grape flea beetle larva

Grape flea beetle larva
Photo Credit: Eric Burkness Grape flea beetle larva
Photo Credit: Eric Burkness

Grape flea beetle larva
Altica chalybea
Size: Up to 3/8 inch long

Where/When: Feeds on the foliage of grape vines. Also known to feed on Virginia creeper, apple, elm and plum. Active from mid- to late May until late June or late July.

Significance: Feeding by the larva does not affect grape quality or yield; however, adult feeding does.
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