The wingspan is 14–15 mm. The forewing is whitish ochreous, irrorated (sprinkled) irregularly with brown and dark fuscous. The inner line is indistinct; the outer line is irregular, oblique, dark fuscous and posteriorly whitish edged. The cellspot is small, dark, outwardly whitish edged. The subterminal line is straight, whitish, ill-defined and preceded by fuscous suffusion, running to the apex. The hindwing is grey.[3] Adults are on wing from the end of May to the beginning of October.[4]
The larvae possibly feed on Juncus and/or Carex species.[5] The larvae can be found from July to May. The species overwinters in the larval stage. Pupation takes place at the stem of the host plant.
^Seitz, A. Ed., 1914 Die Großschmetterlinge der Erde, Verlag Alfred Kernen, Stuttgart Band 3: Abt. 1, Die Großschmetterlinge des palaearktischen Faunengebietes, Die palaearktischen eulenartigen Nachtfalter, 1914
