INSECTS
tion. Its skin now hardens and contracts until the creature takes on the form of a small, hard-shelled, oval capsule, called a puparium (Fig. 182 E).
Fig. 182. The house fly, Musca domestica
A, the adult fly (5½ times natural size). B, the house fly egg (greatly magnified). C, larvae, or maggots, in manure. D, a larva (more enlarged). E, the puparium, or hardened larval skin which becomes a case in which the larva changes to a pupa. F, the pupa.
[ 344 ]
