Origin of ecdysisModern Latin from Classical Greek ekdysis, a stripping from ekdyein, to strip off from ek-, out of + dyein, to enter
The shedding of an outer integument or layer of skin, as by insects, crustaceans, and snakes; molting.
Origin of ecdysisGreek ekdusis a stripping off from ekduein to take off ek- out, off ; see ecto- . duein to put on
From Ancient Greek ἔκδυσις (ekdusis, “stripping”), from ἐκδύω (ekduō, “I take off”), from ἐκ (ek, “out”) + δύω (duō, “I get in”).
- The study of the physiology of ecdysis in its simpler forms has unfortunately been somewhat neglected, investigators having directed their attention chiefly to the cases that are most striking, such as the transformation of a maggot into a fly, or of a caterpillar into a butterfly.
- The mature dragon-fly nymph, for example, makes its way out of the water in which the early stages have been passed and, clinging to some water-plant, undergoes the final ecdysis that the imago may emerge into the air.
- Among the Hexapoda generally there is no subsequent ecdysis nor any further growth after the assumption of the winged state.
- A gnat pupa swims through the water by powerful strokes of its abdomen, while the caddis-fly pupa, in preparation for its final ecdysis, bites its way out of its subaqueous protective case and rises through the water, so that the fly may emerge into the air.
- The May-flies are remarkably primitive in certain of their characters, notably the elongate cerci, the paired, entirely mesodermal genital ducts, and the occurrence of an ecdysis after the acquisition of functional wings.