In the toilet, those flying insects are black gray like mosquitoes, and the wings of silk are like b

In the toilet, those flying insects are called gnats.

The family of gnats is also known as the family of moths and midges, and is commonly known as the moth fly. They are microscopic, hairy or scaly dipteran insects, including blood-sucking sandflies and indoor gnats and other important health pests. The larvae mostly live in the habitats of aquatic organisms (often places with low oxygen content), including bathtubs, wash basins, etc., and are common nuisance pests in bathrooms.

Morphological characteristics. Adult gnats have small and slightly flattened heads, compound eyes far from left and right, and no single eye; antennae long, about equal or longer than cephalothorax, composed of 12 or 16 segments, whorls of hairs; The lower jaw of the mouthparts is long and curved, 4 or 5 segments, the beak is short and the blood-sucking ones are long.

thorax thick and dorsal protrusion, small shields rounded; The feet are short or elongated, and the tibia is not end-distanced. The base of the wings is narrow and the ends are pointed or rounded, often fusiform; The wings and veins are densely hairy, and a few have scales.

Breeding environment. The larvae of the white spotted gnats and the stargazed gnats breed mainly in shallow waters containing putrefactive organic matter in urban areas, and a large number of gnats can be cultivated in septic tanks, sewage tanks, toilets, bathroom washbasins, floor stagnant water, kitchen sinks, damp rags, etc. Traces of gnat larvae can also be found outdoors in silted gutters and in some containers of stagnant water with high organic matter. Most of the adult gnats that have emerged are parked on the nearby walls.

Hazardous phenomena. Mechanical vectors: White-spotted gnats and star-spotted gnats often appear on kitchen and bathroom walls, and their whole bodies are covered with fine hairs, which are easy to carry germs, and may contaminate food and spread diseases. The activity of gnats is not high, the probability of mechanically transmitted diseases is not high, and the ecological habits of white and star gnats have the possibility of spreading E. coli diseases.

It is a mutant midge, which is generally parasitic in the sewer, and after the adult, the unclosed cracks such as baths and basins in the sewer are found and fly out ......It's useless for you to spray with a podiction, you have to seal all the sewer seams in the bathroom with something so that they won't fly out!

That kind of insect is called moth midge, which likes to inhabit damp and dark places, and is relatively dull, and people who are prone to allergies are easy to cause skin allergies when bitten by it. Pay attention to keep the bathroom ventilated and dry, the drain drain is plugged with something, and if the pipe under the sink in your home is straight, it is best to replace it with a curved one. Regularly flush floor drains with boiling water or diluted Basi to kill insect eggs.

This bug is very stubborn, and it takes a little more insecticide to stare at it to kill it. If you notice these points, the bugs will slowly disappear. The most important thing is to stay dry.

Ground floor of your maggots fly? That's a rare breed!!

Maggots are often present in the toilet and are quite normal.