The Dark-Spotted Looper or Lined Copper Looper (Diachrysia aereoides) is a moth of the Noctuidae family. It is found from Newfoundland west to northern California. It reaches its southern most distribution in Great Smoky Mountains National Park. The wingspan is 28–40 mm. Adults are on wing from June to July. There is one generation per year. The larvae are probably general feeders on herbaceous and woody plants. Larvae have been recorded on Asteraceae, Lamiaceae and Rosaceae species.