This Butterfly Is the First U.S. Insect to Be Wiped Out by Humans Genetic tests using museum specimens suggest that the Xerces blue was a distinct species and that it disappeared in 1941 ...

NATURAL HISTORY MIAMI BLUE BUTTERFLY } Hemiargus thomasi bethunebakeri FAMILY: Lycaenidae DESCRIPTION: The Miami blue is a small butterfly with a wingspan of only about an inch. Males are bright, ...

Several small, silvery-winged butterflies flitted among the native spotted bee balm and butterfly milkweed growing under the ...

The Fender’s blue butterfly is found only in Oregon’s Willamette Valley – a 150-mile long region in the state that stretches from Portland to Eugene – says the service. The species was ...

The beautiful Mount Charleston blue butterfly is in desperate need of help and we’ve got to move quickly,” said Rob Mrowka, Nevada ecologist for the Center for Biological Diversity.

The Xerces blue butterfly vanished from San Francisco in the 1940s. Scientists just released dozens of butterflies from a related species to take its place.

Dorset-based Butterfly Conservation say the species is the country's smallest resident butterfly, with a wing-span of no more than 1.2in (30mm). It is usually confined to small patches of ...