Wordnet 3.0
NOUN (1)
1. 
 the outer body wall of an insect; 
The Collaborative International Dictionary of English v.0.48:
cuticula \cuticula\ n.
   the outer body wall of an insect.
   [WordNet 1.5]
WordNet (r) 3.0 (2006):
cuticula
    n 1: the outer body wall of an insect