DESCRIPTIONS OF NEW GENERA AND SPECIES OF THE GEOMETRINA OF NORTH AMERICA

Extract

Selidosema nigrescens, n. sp.

Expands 31-33 mm. Palpi and front dark fuscuous; antennæ black above, fuscous below; thorax dark fuscous, patagiæ lighter; abdomen dark even fuscous. All wings dark fuscous, made by heavy coalescing striations of fuscous and blackish on a light fuscous ground; basal line black, quite distinct, rounded, wavy; a median shade passing through distinct black discal spot; an outer black distinct cross line, continued across hind wing, on fore wing sinuous, subparallel with outer margin, on hind wing nearly or quite straight; on fore wing beyond this line is a broad reddish-brown band, not always clear, however, sometimes showing faintly at middle of hind wing; a submarginal row of light, not distinct, lunules, edged within with darker; marginal lines black, distinct. Beneath fuscous, with faint line shadows, and a dark shadow spot near apex of fore wings.