Figures 3.16


Generalized scheme of the endo-ectoperitrophic circulation of digestive enzymes in the midgut.
Figures 3.16. Generalized scheme of the endo-ectoperitrophic circulation of digestive enzymes in the midgut.

(After Terra & Ferreira 1981)

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  Longitudinal section through the anterior body of a caterpillar of the cabbage white butterfly, Pieris rapae (Lepidoptera: Pieridae).
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  Schematic diagram of a generalized excretory system showing the path of elimination of wastes.