The Collaborative International Dictionary of English v.0.48:

Antlia \Ant"li*a\, n.; pl. Antil[ae]. [L., a pump, Gr, ? hold
   of a ship] (Zool.)
   The spiral tubular proboscis of lepidopterous insects. See
   Lepidoptera.
   [1913 Webster]

WordNet (r) 3.0 (2006):

Antlia
    n 1: a faint constellation in the southern hemisphere near Hydra
         and Vela