Source : Webster's Revised Unabridged Dictionary (1913)

Owlet \Owl"et\, n. [Dim. of owl. Cf. {Howlet}.] (Zo["o]l.)
   A small owl; especially, the European species ({Athene
   noctua}), and the California flammulated owlet ({Megascops
   flammeolus}).

   {Owlet moth} (Zo["o]l.), any noctuid moth.

Source : WordNet®

owlet moth
     n : usually dull-colored medium-sized nocturnal moth; the
         usually smooth-bodied larvae are destructive agricultural
         pests [syn: {noctuid moth}, {noctuid}]