Great place to ID butterflies and many other critters

Here you can view thumbnail images of hundreds of butterflies: http://www.npwrc.usgs.gov/resource/distr/lepid/bflyusa/thumb/thumb.htm

And it's not just butterflies! There's all sorts of critters there. You can also look by state or region. It's a great site where you can just dig and keep on digging.

http://www.npwrc.usgs.gov/resource/resource.htm

That *is* a great site! I use it a lot.

I use that one a lot, too. It is good. Birds & Blooms magazine supposedly has b'flies on-line at their site. I haven't checked that out yet.