HORTICULTURE

Detailed explanation-1: -The emerging fly escapes from the pupal case through the use of an alternately swelling and shrinking sac, called the ptilinum, on the front of its head which it uses like a pneumatic hammer to break through the case.

Detailed explanation-2: -Fly pupae are similar in function to butterfly cocoons: their hard, brown shells protect the inactive, developing flies. Over the course of three to six days, the pupae develop legs and wings, ultimately emerging as full-grown house flies. Within two to three days, female house flies are capable of reproduction.

Detailed explanation-3: -plural puparia pyü-ˈper-ē-ə : a rigid outer shell formed from the larval skin that covers some pupae (as of a dipteran fly)

Detailed explanation-4: -A fly life cycle is very similar to that of most insects. It proceeds as a basic cycle that begins with an egg, followed by development through a larva phase, a pupa phase, and finally, turning into an adult.