The Collaborative International Dictionary of English v.0.48:

Phasmatidae \Phasmatidae\ prop. n.
   A natural family consisting of the stick insects.

   Syn: Phasmidae, family Phasmidae, family Phasmatidae.
        [WordNet 1.5]

WordNet (r) 3.0 (2006):

Phasmatidae
    n 1: stick insects [syn: Phasmidae, family Phasmidae,
         Phasmatidae, family Phasmatidae]