Definition: Arthrogryphus: A genus of vertebrates found in North America, known for their large arthropod feet called archeglyphs. Definition: 1. Large round or irregularly shaped feet that are used to walk on land. 2. Often associated with certain species of insects such as aphids, whiteflies, and beetles. Definition: Arthrogryphus: A genus of vertebrates found in North America, known for their large arthropod feet called archeglyphs. Definition: Large round or irregularly shaped feet that are used to walk on land.