緑色の弱々しいカゲロウを、見たことがありますが、黒いカゲロウは初めてです。なんだか怪しい魅力がただよっていました。
When I was walking in the wood, I found a mayfly perched on a Japanese pepper tree. I had ever seen green feeble mayflies, but it was my first time to see a black one. It looked like somewhat a devilish charm creature.
