add. ·- a small european sawfly (cephus pygmaeus) whose larva does great injury to wheat by boring in the stalks.
2. wheat sawfly ·add. ·- pachynematus extensicornis, whose larvae feed chiefly on the blades of wheat;
called also grass sawfly.
3. wheat sawfly ·add. ·- any of several small american sawflies of the genus dolerus, as d. sericeus and d. arvensis, whose larvae injure the stems or heads of wheat.