Caterpillars in Your Yard and Garden - Page 38
Silverspotted skipper caterpillars (Epargyreus clarus) are present in summer and fall. They produce two to three generations per year.
The head of this nearly two-inch-long caterpillar is rusty-brown with a pair of large, conspicuous orange "eye spots" above the mouthparts. The first thoracic segment ("neck" region) is constricted and red-brown. The rest of the body is yellow-green with transverse narrow dark lines. Host plants are black locust, honey locust and wisteria.
About the family
Skippers are in the Hesperiidae family.