Butterfly Websites

Butterflies of America	Interactive Guide to Caterpillars
eButterfly	Massachusetts Butterfly Atlas
North American Butterflies & Moths	Massachusetts Butterfly Club
Caterpillars of Eastern Forests	Connecticut Butterfly Atlas
Butterflies & Moths of the World	Vermont Butterfly Atlas
North American Butterfly Association	Monarch Watch
The Lepidopterist's Society	Lepidoptera - Tree of Life