A Cherry (or Ferguson's) Scallop Shell Moth along Black Farm Trail. I guess there is a chance this could be the similar looking Rheumaptera undulata, but based on range and flatness of the coloration it's more likely prunivorata. Dissection seems to be the only sure way to know.
Summary[edit] Description: English: Location taken: Department of Environmental and Forest Biology, SUNY College of Environmental Science and Forestry, Syracuse, NY. Names: Hydria prunivorata (Ferguson, 1955), Cherry Scallop Shell Moth, Cherry Scallopshell Moth, Ferguson's Scallop Shell, Ferguson's Scallop Shell Mot Classification: Animalia > Arthropoda > Insecta > Lepidoptera > Geometridae> Hydria > Hydria prunivorata. Date: 24 January 2007. Source: source: David Stang. First published at ZipcodeZoo.com. Author: Photo by David J. Stang.
Pennsylvania Department of Conservation and Natural Resources - Forestry Archive, , United States
Wikimedia Commons
Summary[edit] Description: English: Rheumaptera prunivorata larva. Date: 17 November 2006. Source: : This image is Image Number 5019096 at Forestry Images, a source for forest health, natural resources and silviculture images operated by The Bugwood Network at the University of Georgia and the USDA Forest Service.. Author: Pennsylvania Department of Conservation and Natural Resources - Forestry Archive, , United States.
Summary[edit] Description: English: Location taken: Department of Environmental and Forest Biology, SUNY College of Environmental Science and Forestry, Syracuse, NY. Names: Hydria prunivorata (Ferguson, 1955), Cherry Scallop Shell Moth, Cherry Scallopshell Moth, Ferguson's Scallop Shell, Ferguson's Scallop Shell Mot Classification: Animalia > Arthropoda > Insecta > Lepidoptera > Geometridae> Hydria > Hydria prunivorata. Date: 24 January 2007. Source: source: David Stang. First published at ZipcodeZoo.com. Author: Photo by David J. Stang.
Pennsylvania Department of Conservation and Natural Resources - Forestry Archive, , United States
Wikimedia Commons
Summary[edit] Description: English: Rheumaptera prunivorata. Date: 11 September 2007. Source: : This image is Image Number 5019098 at Forestry Images, a source for forest health, natural resources and silviculture images operated by The Bugwood Network at the University of Georgia and the USDA Forest Service.. Author: Pennsylvania Department of Conservation and Natural Resources - Forestry Archive, , United States.