羽黒 はぐろ蜻蛉 かげろうだったら
haguro kagerōdattara

Noun
Da Copula

The "-tara" conditional form ("if/when…") of 羽黒蜻蛉

1. If it were a black darter dragonfly…; If it had been a black darter dragonfly…

Tara Conditional