NABA North American Butterfly Association. A non-profit organization dedicated to the conservation of butterflies and their habitats.
Lepidopterist Society Homepage
USGS Butterflies of North America A good site for butterfly descriptions, range maps, and additional photographs of butterflies.
Lepidoptera Alert Owen Perkins, a key member of the Michigan Lepidoptera Survey, focusses on the scientific atlassing of the rarer butterflies and moths of Michigan.
Michigan Lepidoptera Survey This butterfly survey organized by the Michigan Entomological Society focusses on the distribution and biology of Michigan's threatened and endangered species of butterflies and moths. It seeks to identify and monitor critical habitats for each of the species.
Nature Serve The Natural Heritage Website is the place to find information about threatened and endangered butterfly species. Used by conservation organizations like The Nature Conservancy to protect rare ecosystems and habitats. Has extensive database resources that can be queried.
Petersburg SGA Learn more about the plants and habitat of a major butterflying location of the Greater Washtenaw Butterfly Survey. Efforts are being made here to restore a rare Oak-savanna prairie ecosystem in northwest Monroe county.
Randy Emmitt's Butterflies of North Carolina Excellent photographs of butterflies.