description Cloudless Sulphur Overview
The Cloudless Sulphur is the butterfly species Phoebis sennae, a large yellow member of the family Pieridae found throughout much of the Americas. In North America it is especially noticeable during seasonal movements, including the southward migration seen in Florida. Its caterpillars use senna and related plants in the pea family as food plants, while adults feed on flower nectar.
help Cloudless Sulphur FAQ
What is the scientific name of the Cloudless Sulphur?
The Cloudless Sulphur is Phoebis sennae, a large yellow butterfly in the family Pieridae. It occurs throughout much of the Americas.
Where can I see Cloudless Sulphur butterflies?
They are widespread across the Americas and are especially noticeable in parts of North America during seasonal movements. Florida is known for observing their southward migration.
Why is the Cloudless Sulphur called cloudless?
The name refers to the bright, largely clear yellow appearance of the adult butterfly's wings. It is a sulphur butterfly, but it is larger and more strongly colored than many smaller yellow species.
What do Cloudless Sulphur caterpillars eat?
The caterpillars feed on plants in the senna group, which supports the species' common association with those host plants. Adults are often noticed visiting flowers for nectar across open habitats.
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