Negrobueno snowy butterflies are considered “large,” measuring about 2 inches across, the study said. They have “hairy” eyes and “dark brown” wings with a few white patches.

The Puerto Rican harlequin butterfly (Atlantea tulita) is a small, dark-brown butterfly with black and deep-orange markings. The butterfly uses the prickly bush (Oplonia spinosa) as a host plant for ...

A year-round resident of New Mexico's high mountain meadows, the highly imperiled Sacramento Mountains checkerspot butterfly relies wholly on the integrity of its remarkably limited range. This ...