The Xerces Blue Butterfly (Glaucopsyche xerces) once fluttered across the coastal dunes of San Francisco, its shimmering blue wings lighting up the sandy hills near the ocean. Small and fragile, yet breathtakingly beautiful, it was one of nature’s gems — until it disappeared forever in the early 1940s. A Butterfly of the Coast The Xerces Blue lived exclusively in San … [Read more...] about The Xerces Blue Butterfly — The First Insect in the U.S. Lost to Human Impact

