Figures 5.13


A schematic diagram of the hormonal regulation of reproductive events in insects.
Figures 5.13. A schematic diagram of the hormonal regulation of reproductive events in insects.

The transition from ecdysterone production by the pre-adult prothoracic gland to the adult ovary varies between taxa. (After Raabe 1986)

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  Tip of the ovipositor of a female of the black field cricket, Teleogryllus commodus (Orthoptera: Gryllidae), split open to reveal the inside surface of the two halves of the ovipositor.
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  Schematic drawing of the life cycle of a non-biting midge (Diptera: Chironomidae, Chironomus) showing the various events and stages of insect development.