Michael Locke

TL;DR: In the larva of the butterfly Calpodes ethlius, the fat body begins to store protein in the form of granules at about 30 to 35 hours before pupation, at a time when the endocuticle is being resorbed.

TL;DR: The fat body in Calpodes ethlius (Lepidoptera, Hesperiidae) takes up protein from the blood throughout the larval stage before pupation, and depending upon the phase of development, the protein appears in multivesicular bodies, in large storage granules, and in structures of intermediate form.

TL;DR: The formation of the cuticulin membrane may be a useful model for studying the origin of membranes in general because it arises as a triple layer de novo and is not a modified plasma membrane.

TL;DR: The structure and development of the permanent oenocytes of Calpodes ethlius (Lepidoptera, Hesperiidae) are described and it is pointed out that the oen cells could be the source of ecdysone and the stimulus for molting.

TL;DR: A structure for a generalized insect epidermal cell during the formation of the epicuticle is proposed, based on studies of several different epider mal cell types, and marks an interlude in the involvement in cuticle formation of plasma membrane plaques.