Source : Webster's Revised Unabridged Dictionary (1913)

Apis \A"pis\, n. [L., bee.] (Zo["o]l.)
   A genus of insects of the order Hymenoptera, including the
   common honeybee ({Apis mellifica}) and other related species.
   See {Honeybee}.

Source : WordNet®

Apis
     n : type genus of the Apidae: honeybees [syn: {genus Apis}]