MadSci Network: Zoology

Re: Why do butterflies lay their eggs on the underside of leaves?

Date: Sun Feb 20 11:19:53 2005
Posted By: Dr. V.Shubhalaxmi, Staff, Conservation Education Centre, Bombay Natural History Society
Area of science: Zoology
ID: 1108715995.Zo

Dear Friend,

Some butterflies and moths prefer to lay eggs on the underside of a leaf. This is mostly for the purposes of protection. The eggs remains out of sight of some predators, and will also be protected from light (UV light can be damaging to insects, just like it is to our skin). Also by laying eggs on the underside of the leaf, the butterfly or moth gets a better leverage, because it has to curl its abdomen inwards while laying eggs.


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