phalaenid

from The Collaborative International Dictionary of English v.0.48

Phalaenid \Pha*l[ae]"nid\, n. [Gr. fa`laina, fa`llaina, a kind
   of moth.] (Zool.)
   Any moth of the family {Phal[ae]nid[ae]}, of which the
   cankerworms are examples; a geometrid.
   [1913 Webster]