薄 (usu, “thin”) + 羽 (ha, “wing”) + 黄蜻蛉 (kitonbo, “yellow darter”, jukujikun (熟字訓))
薄羽黄蜻蛉 (hiragana うすばきとんぼ, katakana ウスバキトンボ, rōmaji usuba kitonbo)