羽黒蜻蛉はぐろとんぼ 1Calopteryx atrata (species of damselfly) Translated by Jiyomi Other writings and readings鉄漿蜻蛉ハグロトンボ noun (common) (futsuumeishi) Kanji · tap to open feathers black dragonfly dragonfly JMdict entry 2791730. Source and licence.