Dilar geometroides Aspöck & Aspöck, 1968: 15. Type locality: Nepal ( Janakpur).
Dilar aspersus Yang, 1988: 197. Type locality: China ( Tibet: Linzhi).
Diagnosis. This species is characterized by the forewing with numerous pale brown markings, the male gonocoxite 9 rather inflated, and the gonocoxite 10 slenderly elongate and bifid at the tip.
Materials examined. 1♂, W-Nepal: Modi-Khola, Pothana-Landrung, 25 km NW Pokhara (406), 24.15N 83.50E, 1600–1900 m, 7.V.1984, leg. Holzschuh Carolus / 84-406 (CHRR); 4♂, OST-Nepal: Koshi Sig.:507 / 85, Basantapur, 27.10N 87.30E, 2300 m, 30.V.–2.VI.1984, leg. Holzschuh C. / 85-507 (CHRR); 2♂, E-Nepal: Dhanku- ta, Arun-Valley, Chichila, 2000 m, 31.V.1983, leg. C. Holzschuh / 83-316 (CHRR); 1♂ India, Sikkim / McLachlan Coll. B.M. 1938–674 (NHM).
Distribution. China ( Tibet), India ( Sikkim), Nepal ( Dhaulagiri, Janakpur, Kosi).