Research field (2)：
Biodiversity and systematics
, Entomology
Research keywords (3)：
leaf miner
, Microlepidoptera
, Taxonomy
Research theme for competitive and other funds (4)：
2021 - 2025 潜葉性小蛾類の多様化に貢献する生態的特性の解明
2022 - 2025 Establishment of information infrastructure and development of information acquisition technology for conservation of plant-insect interaction networks in the Ogasawara Islands
2016 - 2019 Systematics of the China-Himalayan insects, with research on effective bioresources
Papers (35)：
SADAHISA YAGI, KIYOSHIRO GOTO, JAE-CHEON SOHN. A new species of Caloptilia (Lepidoptera: Gracillariidae) from Japan and Korea. Zootaxa. 2024. 5446. 3. 420-432
Sadahisa Yagi, Johei Oku, Toshiya Hirowatari. A new Hibiscus-feeding species of Bucculatrix (Bucculatricidae) from the Ogasawara Islands, Japan. Nota Lepidopterologica. 2024. 47. 29-42
Goto, K, Imamura, Y, Yagi, S, Tomura, S, Tokuhira, T, Sakagami, K, Byun, B.-K, Hirowatari, T. Distribution and host plants of Eretmocera artemisiae Li, 2019 (Lepidoptera: Scythrididae) in Japan. Lepidoptera Science. 2024. 74. 4. 119-124
JAE-HO KO, SADAHISA YAGI, TOSHIYA HIROWATARI DASARI. A new species of Nemophora from Korea (Lepidoptera, Adelidae, Adelinae). Zootaxa. 2023. 5360. 1. 127-136
Hazumu Arashima, Sadahisa Yagi, Kota Sakagami, Toshiya Hirowatari. A new Ericaceae-feeding species of Agonopterix (Lepidoptera, Depressariidae) from Japan. Journal of Asia-Pacific Biodiversity. 2023. 16. 1. 130-133
