n. plThysanoptera(Zoöl) 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.
Century Dictionary and Cyclopedia
ThysanopteraIn Brauer's system, the seventh order of insects, including only the family Thripidæ (or Thripsidæ), by the older authors (before Haliday) considered as belonging to the Hemiptera. The head ends in a short fleshy beak, but the maxillæ bear two- or three-jointed palpi, and labial palpi are present. The wings are long, narrow, often vein-less, and furnished with a long fringe. In the males of some species the wings are wanting. The eggs are cylindric, round at one end and knobbed at the other. The larva and pupa are both active. The feet end in bulbous enlargements, whence the name Physopoda, applied to the group by Burmeister. Two species have been found to be carnivorous, but the majority are plant-feeders. The principal genera are Phlœothrips, Limothrips, and Thrips. See cut under Thrips.
Webster's Revised Unabridged Dictionary
NL., from Gr. a fringe + a wing
Pterothorax: the wing-hearing thoracic segments in Thysanoptera.
"Explanation of Terms Used in Entomology" by John. B. Smith