title: Normal and cocoon-forming peritrophic membrane in larvae of the beetle Gibbium psylloides.
mesh_terms: D000818:Animals; D001517:Coleoptera / Q000648:ultrastructure*; D007422:Intestines / Q000648:ultrastructure; D007814:Larva; D008566:Membranes / Q000502:physiology / Q000648:ultrastructure; D008675:Metamorphosis, Biological