Koyagawa and Otozuregawa Firefly (Genji Botaru) Breeding Area

木屋川・音信川ゲンジボタル発生地 · Koyagawa Otozuregawagenjibotaruhasseichi

Genji Firefly — Photo: Alpsdake / CC BY-SA 4.0 / Wikimedia Commons

Designated by: National / Natural Monument
Designation type: Habitat / breeding site
Designated on: October 16, 1957
Location: 山口県長門市、下関市豊田町
Prefectures: Yamaguchi
Scientific name: Nipponoluciola cruciata

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

About the Genji Firefly

The Genji Firefly is Japan's representative large firefly, glowing softly by clear streams on early summer nights. Its larvae live in water and feed on freshwater snails. It has declined in many places through water pollution and riverbank works, but conservation efforts continue. "The Genji fireflies of Nagaoka and their breeding site" in Maibara, Shiga, is a Special Natural Monument, and many other sites across Japan are also Natural Monuments.

Natural Monuments related to the Genji Firefly →

Map

Approximate location of the designated site (municipality centre).

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Frequently asked questions

Yes. Koyagawa and Otozuregawa Firefly (Genji Botaru) Breeding Area is a National Natural Monument, designated as: Habitat / breeding site. Designated on October 16, 1957.

The designated site is in 山口県長門市、下関市豊田町.

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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