Syngrapha alticola. Treated as a separate species from the Eurasian species S. devergens (Hübner, [1813]) by Lafontaine and Poole (1991).
<ul>
      <li>Lafontaine JD, Poole RW (1991) Noctuoidea, Noctuidae (part) - Plusiinae. In: Hodges RW et al. (ed) The moths of America north of Mexico. Fascicle 25.1. Washington: The Wedge Entomological Research Foundation. 177 pp.</li>
  </ul>