蚊

1. Origins, structure, and basic meaning

• Structure: 蚊(か) is a one-character noun meaning mosquito.
• Basic usage: It describes being bitten by a mosquito while sleeping with the window open.
  • 窓を開けたまま寝たら蚊に刺された。

2. Common pitfalls and similar expressions

• Being bitten by a mosquito
  • A common Japanese expression for being bitten by a mosquito is 蚊に刺される, using a verb associated with piercing or stinging. 蚊が刺す centers on the mosquito's action, while 蚊に刺される centers on the person bitten.