During this stage the cuticle draws away from the imaginal cuticle which is forming beneath, ultimately becoming separated as a thin transparent pellicle through which the form of the adult can be seen.
Contrary to the habits of all other insects, there yet remains a pellicle that has to be shed, covering every part of the body.
This final moult is effected soon after the insect's appearance in the winged form; the creature seeks a temporary resting-place, the pellicle splits down the back, and the now perfect insect comes forth, often differing very greatly in colours and markings from the condition in which it was only a few moments before.
The surface is acted on by oxygen, transforming the external pellicle into the more soluble form of sericin.
In the variety C. purpurea, the leaves, as also the pellicle of the kernel and the husk of the nut, are purple, and in C. heterophylla they are thickly clothed with hairs.
This micro-organism, which resembles ordinary yeast cells in appearance, forms a pellicle on the surface of wine, particularly when the latter is exposed to the air more than it should be, and its development is favoured by lack of alcohol.
Mixed zoogloea found as a pellicle on the surface of vegetable infusions, &c.; it consists of various forms, and contains cocci (a) and rodlets, in series (b and c), &c. (x 540).
Zoogloea pellicle (X 500).
The body is bounded by a firm pellicle, often supplemented by an armour (" lorica ") of cuticular cellulose plates, with usually a marked longitudinal groove from which the anterior flagellum springs, and an oblique or spiral transverse groove for the second flagellum.
We are acquainted with a mere pellicle of the globe on which we live.