Want to know more about the beautiful winged visitors in your backyard? There are so many extraordinary butterflies that are ...

Entomologists have discovered Papilio solstitius, a new tiger swallowtail butterfly that appears in summer in eastern North ...

Generations have watched in wonder as yellow-and-black striped caterpillars fold into green-and ... wings around 5 to 12 times per second — much more slowly than the average butterfly, who flaps about ...

The Quino checkerspot was once one of the most common butterflies in Southern California: At the beginning of the 20th century, millions of these orange-and-black ... this low-flying flutterer from ...