Шаблон:Entomology glossary hatnote
The wingspan is 30–35 mm. Forewing greyish ochreous, with olive-fuscous shading varied with whitish; stigmata large, outlined in black; claviform elongate, orbicular and reniform with fuscous centres in a pale ring; orbicular small, often conjoined to reniform; submarginal line preceded by black dentations; hindwing white, with brownish veins and margin; the female always darker, with the hindwing wholly brownish. In the typical form the markings are distinct on a pale grey ground; — ab. sagittiferus Haw. differs only in having the ground dark fuscous; — ab. clavis Esp. is pale reddish ochreous; the forms in which the markings are more or less obsolete differ similarly in colouration; — thus ab. signata has a pale grey ground; — ab. trigonalis Esp. is a small fuscous form with the stigmata large and outer margin dark; — and ab. nigra Tutt is blackish fuscous with the course of the median vein pale; — in ab. lineolata Tutt the wedge-shaped markings, usually submarginal only, extend through to the outer margin.[1]
Adults are on wing from July to September depending on the location.
The larva is earth-grey, occasionally greenish or reddish. It has a fine, dark, double dorsal line and pale, enclosed with darker colour lateral stripes. The pupa is reddish-brown, the pointed cremaster has two close thorns
The larvae feed on Galium and Stellaria species.[2] in sandy areas.
↑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
