The Brick

The wingspan is 34–44 mm. Forewing yellow ochreous or ferruginous, sometimes much dusted with fuscous; the lines and edges of stigmata rufous; the inner line waved, the outer lunulate-dentate; submarginal wavy, ochreous, with a rufous line inside it; lower part of reniform blackish; a small dark spot near base of wing; median shade generally present; hindwing grey, the costal area ochreous, the fringe rufous ochreous. The paler ochreous form is the type; the deep ferruginous examples are ferruginea Especially in Agrochola macilenta Hbn., the forewings are darkened by fuscous shading, especially along inner and outer margins; the hindwings are blackish grey; the ab. fusconervosa Petersen has all the nervures dark throughout; in nigridens Fuchs, a rare form, the cross lines are strongly black and dentate.