What is the slender insect seen in the bathroom at home

I've seen this little flying insect too, and I'd love to know who its last name is. Sometimes it bites in the shower, and my way to deal with it is to pour boiling water on the floor drain and scald it half to death.

If you see a water snake or a flower snake (the black and red kind), if it is a water snake, then you must drive it out. >>>More

A gnat, or his larvae.

The larvae of the white-spotted gnats and star-spotted gnats breed mainly in shallow waters containing putrefactive organic matter in urban areas, septic tanks, cesspools, side spaces, bathroom washbasins, stagnant floors, kitchen sinks, damp rags, etcand so on, and a large number of gnats can be cultivated. Outdoor gnats larvae can also be found in silt gutters, septic tanks, and some containers of stagnant water with high organic matter. Most of the adult gnats that emerge are parked on the nearby walls. >>>More

1. All of them, this is the legendary "maggot". Suggestion: Spray insecticide on the leak (trichlorfon works best), then repair the leak with waterproof glue or cement, and then be fine.

What kind of bug do you call it? In Fengxi, I saw a little mosquito medicine left. It is usually available at the market. Sprinkled in the crevices is especially useful.