The species head, thorax, forewings, and antennae are yellowish-white coloured.

They have dark brown scales, which are intermixed with pale greyish cilia.

The outer edges are prolonged near the apex, with a media fascia being of dark grey colour.

The third quarter is dark greyish-brown in colour with prolonged costa and dorsum which are connected with middle fascia.

The main difference is that this particular species have a much longer left brachium and much strongly bent valvellae.