The southeast Asian genus Ancyra is well known for the adult insects having a pair of prolonged filaments at the tips of the forewings; the wings are folded back when the insect is not in flight, so that the tips with their attached filaments are at the posterior end.
The Southeast Asian species of Ancyra are well-known for having long filaments on the tips of their forewings. When resting, the wings fold back, exposing these filaments to the rear end.