The Mount Charleston blue butterfly, which was listed as endangered in 2013, has precariously low population numbers. Fewer than 100 individuals have been observed during surveys in the past five ...

The females are brown with smaller areas of blue interspersed. Luke says, 'The blue morpho makes my work a little easier. Its emergence success rate (when a butterfly safely breaks out of its ...

This action is based on the recovery of butterfly populations in Oregon’s Willamette Valley. “The Endangered Species Act has ensured the full recovery of more than 50 species, and the Fender’s blue is ...