The Collaborative International Dictionary of English v.0.48:

gracilariid \gracilariid\ n.
   Any of several small dull or metallic-colored tineoid moths
   whose larvae mine in plant leaves; a member of the
   Gracilariidae.

   Syn: gracilariid moth.
        [WordNet 1.5]

WordNet (r) 3.0 (2006):

gracilariid
    n 1: small dull or metallic-colored tineoid moths whose larvae
         mine in plant leaves [syn: gracilariid, gracilariid
         moth]