The Green-patched Looper (Diachrysia balluca) is a moth of the Noctuidae family. It is found in north-eastern North America from Nova Scotia west to Manitoba and south to western North Carolina. Great Smoky Mountains National Park is the southern limit of this species. The only other records in the south are from the type locality of Georgia and a record from Liberty County in north-western Florida. These possibly represent strays. The wingspan is about 45 mm. Adults are on wing from June to September.