Greetings
There is a certain amount of justification in supposing that brood
rearing simply resumes after a period of rest. Diapause is common in
insects and its length can vary from days to years. There may be
internal time cycles or it may be entirely environmental, depending on
species.

> Our understanding of how diapause ends is still very incomplete. It is recognized that diapause maintenance may culminate in spontaneous termination and resumption of direct development in many insects and mites which are kept under constant laboratory conditions. Similarly, spontaneous hatching of diapause eggs was observed. In such cases, no distinct termination phase can be recognized and diapause is simply maintained until it ends.

Journal of Insect Physiology 52 (2006) 113-127
Review Eco-physiological phases of insect diapause
Vladimir Kostal


-- 
Peter Loring Borst
Ithaca, NY  USA
+42.347, -76.502

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