Mythimna Ochsenheimer. For many years the genus Mythimna was very broadly defined in Europe and included the genera Aletia Hübner, Pseudaletia Franclemont, and Leucania Ochsenheimer, which were maintained as valid genera in North America in Franclemont and Todd (1983) and Poole (1989). More recently, this fauna is arranged in two genera in Europe (Hacker et al. 2002), with Mythimna (including the structurally similar Aletia and Pseudaletia) as one genus, and the structurally distinctive Leucania being recognized as another genus. We follow this classification here with Mythimna oxygala, comb. rev., M. yukonensis, comb. rev., and M. sequax, comb. rev. as revised combinations.
<ul>
      <li>Franclemont JG, Todd EL (1983) Noctuidae. pp. 120-159. In: Hodges et al. (1983).</li>
      <li>Poole RW (1989) Lepidopterorum Catalogus (New Series). Fascicle 118 Noctuidae, Parts 1-3. New York: E.J. Brill. xii + 1314 pp.</li>
      <li>Hacker H, Ronkay L, Hreblay M (2002) Noctuidae Europaeae. Vol. 4, Hadeninae 1. Entomological Press, Sor&oslash;. 419 pp.</li>
  </ul>