pachynematus extensicornis

1 definition found

pachynematus extensicornis - Collaborative International Dictionary of English v.0.48 :

  Wheat sawfly \Wheat sawfly\
     (a) A small European sawfly (Cephus pygmaeus) whose larva
         does great injury to wheat by boring in the stalks.
     (b) Any of several small American sawflies of the genus
         Dolerus, as Dolerus sericeus and Dolerus arvensis,
         whose larvae injure the stems or heads of wheat.
     (c) Pachynematus extensicornis, whose larvae feed chiefly
         on the blades of wheat; -- called also grass sawfly.
         [Webster 1913 Suppl.]