Wordnet 3.0
NOUN (1)
1. 
 stout-bodied broad-winged moth with conspicuously striped or spotted wings; 
 larvae are hairy caterpillars; 
[syn: arctiid, arctiid moth]
The Collaborative International Dictionary of English v.0.48:
arctiid \arctiid\ n.
   1. 1 a stout-bodied broad-winged moth with conspicuously
      striped or spotted wings; larvae are hairy caterpillars.
   Syn: arctiid moth.
        [WordNet 1.5]
WordNet (r) 3.0 (2006):
arctiid
    n 1: stout-bodied broad-winged moth with conspicuously striped
         or spotted wings; larvae are hairy caterpillars [syn:
         arctiid, arctiid moth]