P. bractea F. ( = securis Vill.) Forewing purplish fuscous with many fine dark strigulae; the lines finely dark but indistinct, inwardly oblique; the inner line below middle finely golden, the outer golden at inner margin only; median area below middle ferruginous brown, containing at base of vein 2 a large irregular somewhat sinuous shining golden blotch (the golden blotch varies from a subquadrate, somewhat anvil-shaped mark to an elongate, sinuous, tongue-shaped one); a deeper diffuse shade from apex to middle; hindwing dull bronzy yellowish tinged with fuscous; the terminal area diffusely deep fuscous. Larva pale green; dorsal and spiracular lines white; head pale green marked with brown.[1] Its wingspan is 42–50 mm.
^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.