cimbex

from The Century Dictionary.

• noun A genus of insects, of the hymenopterous family Tenthredinidæ, characterized by antennæ consisting of 5 joints preceding the club, which consists of 2 joints soldered together; obtuse spurs; the anterior tarsi of male spined beneath; a narrow labrum; wings with 2 marginal and 3 submarginal cells, first submarginal cells with 2 recurrent nervures, and lanceolate cell with a straight cross-line.