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.