Fireflies (Genji Botaru) of Nagaoka and Their Breeding Area

長岡のゲンジボタルおよびその発生地 · Nagaokanogenjibotaruoyobisonohasseichi

Designated by: National / Special Natural Monument
Designation type: Habitat / breeding site
Designated on: March 7, 1944
Location: 滋賀県米原市長岡
Prefectures: Shiga
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).

Frequently asked questions

Fireflies (Genji Botaru) of Nagaoka and Their Breeding Area is a Special Natural Monument of Japan (滋賀県米原市長岡). The Genji Firefly is Japan's…

The designated site is in 滋賀県米原市長岡.

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.