The eastern subspecies of the regal fritillary butterfly, marked by orange forewings and dark hindwings, is found in only one location in North America and is threatened with extinction. The eastern subspecies of the regal fritillary butterfly, marked by orange forewings and dark hindwings, is found in only one location in North America and is threatened with extinction. Plants & Animals Ecology Phys.org – latest science and technology news stories
Rare butterfly only found on Pa. military base should be listed as endangered, feds say
