pupal / pupil [ˈpju:pəl]
pupal – adj. – Entomology related to the pupa stage (between larva and adult) of development of an insect
pupil – n. & v. – n. – 1. civil law – a minor; 2. a young student or trainee; 3. the opening in the iris of the eye that allows light to enter the lense; 4. eye-like markings such as on butterfly wings; v. – undergo training