Coarctate pupa

(Zool.) a pupa closely covered by the old larval skin, as in most Diptera.
a pupa which is incased in the dried-up skin of the larva, as in many Diptera.

See also: Coarctate, Pupa

Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.