The wingspan is 21-23 mm. The forewings are brown, the costa is anteriorly dark fuscous, whitish-sprinkled with a very ill -defined dark fuscous triangular blotch on costa beyond middle, the apex forming a distinct dot. There are faint traces of a pale subterminal line; apical 2/3 of terminal cilia white. The hindwings are dark fuscous scale-tooth moderate, in middle. The larva is pale green; dorsal line darker; subdorsal darker, whitish -edged above; lateral and spiracular faintly whitish; head and tubercles black..[2]
Biology
Moths are on the wing in June and then again in August and September.
It is native to central Europe, Mediterranean North Africa and southern Europe. It has also been recorded from China.[3] It has been introduced in Australia and New Zealand as a biological control agent for ragwort.[4]
^Meyrick, E., 1895 A Handbook of British Lepidoptera MacMillan, London pdf This article incorporates text from this source, which is in the public domain. Keys and description