As the description of this species is not readily accessible to students, I reproduce it here:-

“Female rosy red; body densely clothed, and partly pale yellow beneath; head with a pale yellow band on the front; palpi extreemely short; thorax with six longitudinal pale yellow streaks; abdoment rosy, lanuginous and partly yellow to the base, extending much beyond the hind wings; fore wings with some pale yellowish streaks toward the base, with three exteriro whitish macular, very oblique bands; spots mostly cuneiform; cost straight; tips slightly acute; exterior borders slightly convex, extremely oblique; first and second inferior veins contiguous at the base; third very near the second; fourth remote from the third; hind wings whitish cinereous, slightly hyaline; veins and fringe slightly yellowish.

Corymbites nigricornis Panz. (metallicus Payl. nitidulus Lec.)

This species is widely distributed in North America, from Hudson Bay to Massachusetts, and westwardly to the Rocky Mountains through which it extends to New Mexico. It also inhabits Siberia, Central and Northern Europe. The typical form (European) is described as meatallic black, with the two basal joints of the antennæ and the feet rufous.