御歯黒蜻蛉おはぐろとんぼ 1Calopteryx atrata (species of damselfly) Translated by Jiyomi Other writings and readings鉄漿蜻蛉オハグロトンボ noun (common) (futsuumeishi) Kanji · tap to open honorable tooth black dragonfly dragonfly JMdict entry 2791740. Source and licence.