We recently caught up with Claire Mellish, Curator of Fossil Arthropods, to have a look at a sensational butterfly specimen from the Museum's collection. The specimen in question is an exquisite ...

In 1943, the gossamer-winged Xerces blue butterfly disappeared from San Francisco as housing, parks and museums completely wiped out its habitat in what is now the Richmond and the Sunset.

An adult Chinese peacock butterfly Adults find ways to protect ... Pun says there's a family called the gossamer-winged butterflies that only lay eggs in ant territory. "The caterpillars produce ...