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Prefectural Natural Monument

Insects

Mount Yarigatake Hairstreak (Yarigatake Blue)

ヤリガタケシジミ · Yarigatakeshijimi

Designated by: Prefectural / Natural Monument
Designation type: Species
Designated on: February 24, 1975
Prefectures: Nagano
Scientific name: Plebejus subsolanus yarigadakeanus

View official record

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

About the Yarigatake Alpine Blue

A small blue butterfly living in the alpine zone around Mt. Yarigatake in Nagano, a subspecies known only from the high mountains of central Honshu. Because it survives in a narrow habitat, it is protected from collecting and habitat damage.

Natural Monuments related to the Yarigatake Alpine Blue →

Map

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

Frequently asked questions

Mount Yarigatake Hairstreak (Yarigatake Blue) is a Prefectural Natural Monument of Japan (Nagano). A small blue butterfly living in the alpine zone…

The Mount Yarigatake Hairstreak (Yarigatake Blue) is designated as a species without a fixed area and lives in places such as Nagano.

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.