Source : Webster's Revised Unabridged Dictionary (1913)

Thysanoptera \Thy`sa*nop"te*ra\, n. pl. [NL., from Gr. ? a
   fringe + ? a wing.] (Zo["o]l.)
   A division of insects, considered by some writers a distinct
   order, but regarded by others as belonging to the Hemiptera.
   They are all of small size, and have narrow, broadly fringed
   wings with rudimentary nervures. Most of the species feed
   upon the juices of plants, and some, as those which attack
   grain, are very injurious to crops. Called also {Physopoda}.
   See {Thrips}.

Source : WordNet®

Thysanoptera
     n : thrips [syn: {order Thysanoptera}]