pink and green horned caterpillar
June 30, 2010
I took a picture of a large pink and green caterpillar with a single horn that I found in the Carbon County, PA area. It was in a grove of crabapple trees. It was discovered in mid June. Any help on identification would be greatly appreciated.
Carbon County, PA
Your caterpillar is a Hornworm in the family Sphingidae. We are nearly certain your caterpillar is that of a Snowberry Clearwing, Hemaris diffinis, and we are basing that on a photo posted to BugGuide.