Barcode of Life (BOLD) - Caution: Some specimens shown may not be sequenced. DNA barcode provides evidence of relatedness not proof of identification.
Gwiazdowski, R.A., J.S. Elkinton, J.R. Dewaard, M. Sremac, 2013. Phylogeographic Diversity of the Winter Moths Operophtera brumata and O. bruceata (Lepidoptera: Geometridae) in Europe and North America. Annals of the Entomological Society of America, 106 (2): 143-151.
Hall et al., 2021. The Moths of North Carolina - website (identification, habitats and life history)