Forty three species of the Dichomeris of Taiwan and Japan are revised, with descriptions of 15 new species (albula, angulata, aomoriensis, davisi, fusca, fuscalis, lutea, linealis, lividula, lushanae, ochreata, orientis, symmetrica, taiwana, trilobella). Twelve species; Dichomeris autometra (Meyrick), D. conclusa (Meyrick), D. crambalaeas (Meyrick), D. cyproPhanes (Meyrick), D. cymatodes (Meyrick), D. enoptrias (Meyrick), D. hoplocrates (Meyrick), D. issikii (Okada), D. okadai (Moriuti), D. pyrroschista (Meyrick), D. syngrapta (Meyrick) and D. viridescens (Meyrick), are new combinations in Dichomeris. The genus Hyperecta Meyrick is synonymized with Dichomeris, and D. kawamurai Matsumura is newly synonymized with tostella Stringer and limitellus (Caradja) with oceanis Meyrick. An identification key, descriptions and illustrations of habitus, male and female genitalia, and information on hosts are provided. Phylogenetic relationship of the species in the genus are discussed with a cladistic analysis, using 44 morphological characters. Fifteen species-groups of Dichomeris are recognized.

• Park, Kyu-Tek(Department of Agrobiology, Kangwon National University)
• Hodges, Ronald-W.(Systematic Entomology Laboratory, USDA-ARS, c/o National Museum of Natural History)