The length of the forewings is 13.4 mm. Adults have been recorded on wing from May to June. A few September records possibly indicate a second generation.[1]
This species was formerly a member of the genus Grammia, but was moved to Apantesis along with the other species of the genera Grammia, Holarctia, and Notarctia.[2][3]
References
^Schmidt, B.C. 2009: Taxonomic revision of the genus Grammia Rambur (Lepidoptera: Noctuidae: Arctiinae). Zoological journal of the Linnean Society, 156: 507-597. doi:10.1111/j.1096-3642.2008.00496.x