'Sawfly' definitions:

Definition of 'sawfly'

From: WordNet
noun
Insect whose female has a saw-like ovipositor for inserting eggs into the leaf or stem tissue of a host plant

Definition of 'Sawfly'

From: GCIDE
  • Sawfly \Saw"fly`\, n. (Zool.) Any one of numerous species of hymenopterous insects belonging to the family Tenthredinidae. The female usually has an ovipositor containing a pair of sawlike organs with which she makes incisions in the leaves or stems of plants in which to lay the eggs. The larvae resemble those of Lepidoptera. [1913 Webster]