Forewing olive green mixed with light or dark grey, varied in places with pale brown or reddish, the latter tints appearing along the two folds, the whole wing having a mossy appearance; lines blackish, indistinct; a black streak between inner and outer lines, below the claviform which is followed by a rufous patch; upper stigmata slightly paler grey, tinged with green or reddish; submarginal line pale, followed by blackish scaling on each fold; hindwing dull grey, with darker cellspot, outer line, and submarginal diffuse band; - variegata Tutt is much brighter and gayer; the dark shades, especially in the median area, being intensified, and the paler areas, — viz, the stigmata, the inner margin on each side of the median area,and the space between outer and submarginal lines, lightened; the apex also is prominently paler and the terminal area more largely blackened; - corsica Spul., from the island of that name, is a rough brownish olive green form; from Amasia comes a form, which may be called grisea nov. [Warren] in which the tints are merely dark and light grey, with only the least touch of green or brown, and a second form, dejecta nov. [Warren] decidedly smaller, and uniformly dark grey with the markings all more or less obscured and the hindwing darker, whereas in grisea the pale areas are conspicuous and the hindwing whitish; ab. incolorata ab. nov. [Warren] has the ground colour pale or dark grey, without coloured tints except a faint rufous flush along the two folds and the course of the submarginal line