ヒトスジシマかでしょう
ヒトスジシマ蚊でしょう
hitosujishimakadeshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of ヒトスジシマか

1. Probably a tiger mosquito.

Polite
Presumptive
Conjecture
Usually Written in Kana