A mosquito — a small flying insect that bites and sucks blood, especially common in summer.
夏になると蚊が部屋に入ってくる。
Mosquitoes come into the room in summer.
蚊に刺されて赤く腫れてしまった。
I was bitten by a mosquito and it became red and swollen.
庭に蚊取り線香を焚いて虫よけをした。
I burned mosquito coils in the yard to keep insects away.