List of butterflies of Japan

[1] Japan is home to a nine forest ecoregions, which reflect its climate and geography.

Japan lies at the convergence of three terrestrial realms, the Palearctic, Indomalaya, and Oceania, and its flora and fauna combine elements from all three.

The island arcs of southern Japan, the Ryukyu Islands to the southwest and the Ogasawara Islands to the southeast, are home to subtropical moist broadleaf forest ecoregions; the Nansei Islands subtropical evergreen forests ecoregion is part of the Indomalayan realm, while the Ogasawara subtropical moist forests of the Ogasawaras is part of the Oceanian realm.

The terrestrial ecoregions are: The most important and threatened butterfly habitat in Japan is Satoyama a Japanese term applied to the border zone or area between mountain foothills and arable flat land.

Papers by Shonen Matsumura, Alfred Ernest Wileman, Atuhiro Sibatani, Siuiti Murayama, Takashi Shirôzu, Richard Paget Murray, Oliver Erichson Janson in Tyô to Ga Series website (open access) History