Duncan, 1852 C. albacosta. — Anterior wings silvery grey, the shoulder, thorax, and a broad margin on the anterior edge of a silvery white; a row of angular yellowish-brown marks near the exterior margin, with a faint ear-like mark and a dusky dot In the middle of the wing. From the shoulder runs an oblique cloud of chocolate dots or little tufts. Posterior wings brown, with a broad silvery white margin and fringe.