Meyrick describes it -The forewing with costa moderately arched; bright yellow or yellowish-ferruginous; costal edge, a small subdorsal spot before middle, and a large terminal blotch with angulated edge including a spot of ground-colour ferruginous-fuscous.

[3] The adult lives for only a few days, during which time the female lays eggs on stems and leaves.

It was introduced to the western and west-central United States starting in the 1980s and it is now established in knapweed populations.

It reduces the spread of the plants in areas where mechanical and chemical control is not practical.

It lives on spotted and diffuse knapweed and has not been found to damage other plants.