Nemophora zheduoshana Liao, Hirowatari & Huang sp. nov., from a high mountainous locality (4,200 m) in Sichuan, China, is described. The adult and male genitalia are presented. This new species is closely related to N. sichuana and the three species from China, which we propose naming the N. sichuana species group, but it can be distinguished by several characters on the forewings, abdomen, and the genitalia. A checklist for the sichuana species group, and keys based on adults and the male genitalia, are also provided.

The carcass of a female hairstreak butterfly Chrysozephyrus hisamatsusanus (Nagami & Ishiga) was found at the northern foot of Mt. Fuji, which is east of the current eastern distributional limit of the butterfly. I discuss the dispersal ability and potential of range expansion in this species.

In the second part of this study on the Oecophorid genus Meleonoma Meyrick, eight species are treated. Among them, three species, Meleonoma badia sp. nov., M. obscurior sp. nov., and M. ochrocephala sp. nov., are described as new to science. A new species group, the M. badia-group, is proposed in this study. Additionally, the study presents detailed illustrations of adult specimens, wing venations, and male and female genitalia of all species treated.