Butterflies are easy to love, but their night-flying cousins have always been a little harder to cozy up to. A group of Northwest biologists hopes to change that with the first comprehensive guide to ...

We'd all agree that in a beauty pageant involving butterflies and moths, the chances that the latter will win against their more flamboyant cousins are slim. But, that's only because most of us have ...

This book illustrates in full color 423 of the most common, wide-spread, important, or unusual North American species of Lepidoptera. Sign up for Smithsonian e-news arrow-right ...