Dicallomera fascelina

in the male; it is also distinguished by the ground colour of both wings being olive-grey, with the two transverse lines rather indistinct and not reaching the hindmargin, while the discocellular spot is more conspicuous than in true fascelina.

Forewing black-grey, the light costal area only indicated at the most, but the sharply defined discocellular spot situated in a white patch from whichextend long acute prolongations directed marginad; the outer transverse band is broad and distinct, theinner one diffuse; both dusted with rusty yellow.

— laricis Schille is an almost uniformly ash-grey form with scarcely any black or white irroration,with shortened and obsolescent transverse stripes, living on larches.

and much lighter; hindwing sometimes almost quite white, only in the female somewhat variegated with grey, and dusted with blackish below costally; the light ash-grey forewing bears two obsolescent transverse bands suffused with orange.

are specimens of nivalis from the eastern Tian-shan and the Uliassutai in which the whitish grey forewing is so densely dusted with blackish that the ground colour is almost superseded; the transverse bands almost obsolete.

The larvae feed on various herbaceous plants, such as Cytisus scoparius, Crataegus monogyna, Rubus fruticosus, Calluna vulgaris, Onobrychis viciifolia, Salvia pratensis and Lotus corniculatus.

Fig.1, 1a larvae after final moult