こうしかげろうでしょう
紅糸蜻蛉でしょう
kōshikagerōdeshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of べにいととんぼ

1. Probably a dragonfly.

Polite
Presumptive
Conjecture
Usually Written in Kana