Tailed Orange Butterflies are sulphur butterflies with deep
orange top wings that are more yellow beneath.
wing span typically ranges between 1.25 - 1.75 inches. The butterflies have a
summer and winter form. The winter form is easily distinguished by the
distinctive tail on the hind wing. The summer form lacks a tail and was once
thought to be a separate species.
The photo at right is of the summer form
of a Tailed Orange Butterfly.
Tailed Orange Butterflies are found in central and southeastern
Arizona and live in open woodlands and thorn scrub. Their host plants are
Cassia species in the pea family on which caterpillars feed. Adults fly from
mid-July through early January in Arizona and will feed on the nectar from many
species of flowers.