Caterpillar needing id

Caterpillar needing id

Observation - Caterpillar needing id. Description: Looks like feathery down or mold on a leaf. Unfortunately I disturbed it and it fell off the leaf and curled up into this circle.

Looks like feathery down or mold on a leaf. Unfortunately I disturbed it and it fell off the leaf and curled up into this circle.