ヒトスジシマかであれば
ヒトスジシマ蚊であれば
hitosujishimakadeareba

Noun
Da Copula

The "-eba" conditional form ("if/when…") of ヒトスジシマか

1. If it were a striped mosquito; If it’s a striped mosquito

Ba Conditional
Usually Written in Kana