Palingenesy

Webster's Dictionary of the English Language

·noun A new birth; a re-creation; a regeneration; a continued existence in different manner or form.

II. Palingenesy ·noun That form of evolution in which the truly ancestral characters conserved by heredity are reproduced in development; original simple descent;

— distinguished from kenogenesis. Sometimes, in zoology, the abrupt metamorphosis of insects, crustaceans, ·etc.