Strepsiptera

from The Century Dictionary.

• An order of insects, named by Kirby in 1833 from the twisted wings, synonymous with Rhipiptera of Latreille, and corresponding to the family Stylopidæ.
• In Gegenbaur's system of classification, a family of neuropterous insects, forming with Phryganida the suborder Trichoptera.

from the GNU version of the Collaborative International Dictionary of English.

• noun plural (Zoöl.) A group of small insects having the anterior wings rudimentary, and in the form of short and slender twisted appendages, while the posterior ones are large and membranous. They are parasitic in the larval state on bees, wasps, and the like; -- called also Rhipiptera. See Illust. under rhipipter.