Diprion pini

The common pine sawfly, Diprion pini, is a sawfly species in the family Diprionidae. The adult male is dark brown or black with comb-like antennae; the female is striped black and yellow. The female lays some 100–150 eggs on pine needles. The caterpillars are yellow-green, gregarious, and feed on pine needles. The next generation of adults can emerge from pupae the same year, or the pupae can go into diapause for a year or more. The species is widespread throughout Europe and Russia.

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