Source : Webster's Revised Unabridged Dictionary (1913)

Maia \Ma"i*a\, n. [From L. Maia, a goddess.] (Zo["o]l.)
   (a) A genus of spider crabs, including the common European
       species ({Maia squinado}).
   (b) A beautiful American bombycid moth ({Eucronia maia}).

Source : WordNet®

Maia
     n : type genus of the Majidae; nearly cosmopolitan in
         distribution [syn: {Maja}, {genus Maja}, {genus Maia}]