The Collaborative International Dictionary of English v.0.48:

Clearwing \Clear"wing`\ (kl[=e]r"w[i^]ng`), n. (Zool.)
   A lepidopterous insect with partially transparent wings, of
   the family [AE]geriad[ae], of which the currant and
   peach-tree borers are examples.
   [1913 Webster]