Bonin Hairstreak

オガサワラシジミ · Ogasawarashijimi

Ogasawara Holly Blue — Photo: コミスジ空港 / CC BY-SA 4.0 / Wikimedia Commons

Designated by: National / Natural Monument
Designation type: Species
Designated on: April 12, 1969
Prefectures: Tokyo
Scientific name: Celastrina ogasawaraensis

Designation facts (name, date, location) are compiled from public records by Japanese authorities.

About the Ogasawara Holly Blue

The Ogasawara holly blue is a small lycaenid butterfly formerly recorded on Hahajima and several other Ogasawara islands, with bluish upper wings. Its larvae feed on island plants. It declined severely under pressures including introduced green anoles and habitat changes. It is designated a Natural Monument. Wild individuals have not been confirmed since June 2018, and its captive population died out in August 2020; surveys and preparations for conservation continue.

Natural Monuments related to the Ogasawara Holly Blue →

Map

Designated as a species without a fixed area. Markers show related prefectures.

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Frequently asked questions

Yes. Bonin Hairstreak is a National Natural Monument, designated as: Species. Designated on April 12, 1969.

The Bonin Hairstreak is designated as a species without a fixed area and lives in places such as Tokyo.

When observing, follow local rules, keep your distance and never feed the animals. Capturing or harming Natural Monuments is prohibited under Japan's Act on Protection of Cultural Properties.

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