S. putrescens H. G. (= boisduvalii Dup.) (25 d). Distinguished from punctosa by the greyer tone and black irroration; a black streak from base below cell; the white spot at lower end of cell round, not elongated; terminal interspaces with black streaks. - Larva reddish ochreous; lines pale edged with dark; the subdorsal lines not interrupted. Subsp. canariensis Rbl., [ now full species Leucania canariensis Rebel, 1894] from the Canary islands, is smaller, the forewing darker, with a distinct black cellspot on underside.[1]
Biology
Adults are on wing from October to November. There is one generation per year.
^Warren. W. in 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 This article incorporates text from this source, which is in the public domain.