raspberry sawfly

noun

: a small black sawfly (Monophadnoides geniculatus) with reddish abdomen the spiny greenish larva of which eats the leaves of the raspberry and blackberry

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a black sawfly, Monophadnoides geniculatus, the larvae of which feed on the leaves of the raspberry and blackberry.

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raspberry sawfly,

a sawfly, whose pale-green larvae attack such plants as the raspberry and blackberry.