The Collaborative International Dictionary of English v.0.48:

Myrmeleontidae \Myrmeleontidae\ prop. n.
   A natural family of the order Neuroptera, including the
   antlions.

   Syn: family Myrmeleontidae.
        [WordNet 1.5]

WordNet (r) 3.0 (2006):

Myrmeleontidae
    n 1: antlions [syn: Myrmeleontidae, family Myrmeleontidae]