[3] The female lectotype specimen, designated by Robert Hoare in 2005, is held at the Natural History Museum, London.

Head, palpi, thorax, and abdomen dark fuscous, slightly sprinkled with yellowish.

Forewings elongate, moderate, costa gently arched, apex rounded, hind-margin obliquely rounded; dark fuscous, strewn with ochreous-yellow hair-scales in irregular patches; a leaden-metallic line from 1⁄3 of costa to 2⁄5 of inner margin, angulated outwards in middle; a sinuate leaden-metallic line from above middle of disc to anal angle; a leaden-metallic line from middle of costa-obliquely outwards more than half across wing, thence curved round to touch a whitish dot on costa at 3⁄4, and continued in a strong curve near and parallel to costa and hindmargins to anal angle; space between first and second lines, and within first curve of third line, less strewn with yellow scales and therefore darker than rest of wing: cilia light grey, rather shining.

[2]This species is endemic to New Zealand and has been found in the northern and southern areas of the South Island.

[5] It was regarded by George Hudson as being rare and Robert Hoare states it appears to be rarer than its sister species H.