It turned out that the large butterfly "Asagi Madara" that flew to Tsumagoi Village, Gunma Prefecture last summer was later confirmed on Amami Oshima Island in Kagoshima Prefecture, 1,200 kilometers away.
Chestnut tiger butterflies migrate from one part of Japan to another depending on the season, and are also called "traveling butterflies."
Chestnut tiger butterflies are large butterflies with wingspans of about 10 centimeters. They are also called "traveling butterflies" because they migrate across the Japanese archipelago in search of habitat each season. To do.
In August of last year, locals took part in an event to mark the date on the feathers of chestnut tiger butterflies that flew in. They marked 40 butterflies and returned them to nature.
According to the village board of education, one of these was confirmed in late October last year on Amami Oshima in Kagoshima Prefecture, about 1,200 kilometers away from the village.
The Tsumagoi Village Board of Education said, ``I was very surprised because I didn't think it would move so far.