はぐろかげろうでしょう
羽黒蜻蛉でしょう
haguro kagerōdeshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of はぐろとんぼ

1. Probably a black-veined skimmer.

Polite
Presumptive
Conjecture
Usually Written in Kana