According to the U.S. Fish and Wildlife Service, their wings have a dark gray-brown color at the top, and their hindwings have a dark spot and an irregular dark line. The scarce butterfly can be ...

“I still remember when I walked into the insectary and I saw B. anynana butterflies emerging from their pupa, and I saw the [pure homozygous mutant] phenotype—the whole light brown butterfly—which was ...

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 ...

The meadow brown butterfly’s Latin name is Maniola or ‘little spirit from hell’. It has been represented as a demon in art. The Greek word psyche means both spirit and butterfly. The Greeks ...

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 ...

This giant is conspicuous due to the yellow and black spots in the middle of its brown hind wings, which are visible when it is resting. In captivity, these butterflies are happy feeding in groups and ...

Common Evening Brown: A medium-sized greyish-brown butterfly with large eyespots on its wings to ward off predators. Unlike most butterflies, this one mostly comes out at night.