Holometabolous: having a complete transformation; with egg, larval, pupal and adult stages distinctly separated.
Watch the miller escape from the pupal case and describe it.
In such a case hibernation in the pupal state would certainly give rise to seasonal dimorphism.
Galeotheca: that part of the pupal case that covers the gales.
The pupal stage lasts eleven to sixteen days, the adult escaping at night.
After the caterpillar ceases from feeding, it crawls aside for the purpose of assuming the pupal state.
In the higher Lepidoptera the pupa is immovable, and the imago, after the ecdysis of the pupal cuticle, must emerge.
The pupal duration could not be determined closer than ten days, and this may be the usual length of time required for this stage.
The moth passes the winter in the pupal state on leaves underneath the vine, emerging about the time grapes are blossoming.
Here they molt again, or pupate as it is called, changing to a non-feeding, quiescent stage called the pupal stage.
Plural pupae (py'pē)
An insect in the nonfeeding stage of development between the larva and adult, during which it typically undergoes a complete transformation within a protective cocoon or hardened case. Only certain kinds of insects, such as moths, butterflies, ants, and beetles, develop as larvae and pupae. Compare imago, larva, nymph.