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Cloudless Sulphur Caterpillar Phoebis sennae


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Cloudless Sulphur caterpillar
credit: Clinton & Charles Robertson/CCSA

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Family: Pieridae, Whites and Sulphurs view all from this family

Description Once Cloudless Sulphur egg hatches, a caterpillar emerges that is yellow to greenish, striped on sides, with black dots in rows across the back. The caterpillar will build a tent in a host plant where it hides in the day. The host plant may be partridge pea (Chamaecrista cinerea), sennas (Senna), clovers (Trifolium), or other legumes (Fabaceae). The caterpillar will usually grow to a length between 41–45 mm (1.6–1.8 in).

Dimensions Mature caterpillar, 1 5/8-1 3/4" (41-44 mm).

Habitat Freshwater swamps, marshes & bogs, Shorelines & salt marshes, Cities, suburbs & towns, Meadows & fields, Scrub, shrub & brushlands, Grasslands & prairies.

Range Eastern Canada, Rocky Mountains, Great Lakes, Mid-Atlantic, California, Florida, Southwest, Texas, Plains, New England.