Can flies survive the winter?

1. There are many kinds of flies. Take our common housefly as an example. In winter, they usually lay their eggs in human or animal feces. Compared with cold outdoor, the temperature in feces is higher, which can ensure that eggs will not freeze to death. In spring and summer, these flies will start to breed again.

Another way for flies to spend the winter is very simple, such as flying to a room with high temperature or some caves to avoid the cold. This is the way whiteflies use it. When we clean the house in winter, we occasionally find some big flies that can't fly, and most of them belong to this category.

The overwintering mode of mosquitoes

1. When the weather turns cold in autumn, mosquitoes will die in large numbers. Some mosquitoes, like pink flies, spend the winter looking for some warm places to avoid the cold, such as cracks in walls and heating pipes. In addition, similar to animal hibernation, they also need to slow down their metabolism to ensure that they will not starve to death.

Another way for mosquitoes to spend the winter is to lay eggs in the water. After the water freezes in winter, although the temperature is low, these eggs will not freeze to death. When the weather gets warmer, these mosquito eggs will turn into dragonflies (mosquito larvae) and start to move. Other studies have found that even after a cold winter, it is still possible to survive.

The most common housefly we usually see has a short life cycle. At the end of the life cycle, they will lay eggs in feces, and the fermented feces are fluffy and soft, which can play a role in heat preservation. When the weather gets warmer and the temperature and humidity are suitable next year, such flies will start to multiply again. In addition to houseflies, there are also pink flies that we usually see. This whitefly is relatively large. When the weather starts to get cold, some adult pink flies will fly into the house and look for cracks or holes everywhere to avoid the cold. When the weather gets warmer, pink flies come out and move around again, because for them, spring has come at this time. This kind of fly belongs to different families from the annoying flies in summer, but like houseflies, it also likes to live in human living areas.

Mosquitoes, like flies, need to spend the winter in human settlements. There are many kinds of mosquitoes. It is reported that there are 42 species of mosquitoes in new york alone. At the same time, all mosquitoes need to hibernate, or more accurately, spend the winter! When the weather cools down in autumn, especially when the temperature drops below 10 degrees Celsius, a large number of mosquitoes will die, and only a few strong mosquitoes will survive. Mosquitoes are "adults overwintering", that is, adults hide in dark and humid places such as corners and basements to spend the cold winter. In early spring, they come out from various hiding places such as cracks in the corner, bathe in warm sunshine, have a full meal of human and animal blood, and then start laying eggs.

Some mosquitoes spend the winter as eggs. In summer, female mosquitoes lay eggs in the water. These eggs will freeze in water as the temperature drops, but they will not die, and they will not thaw and hatch until the warm spring rain comes next year. A few mosquitoes overwinter as larvae. Mosquito larvae-that is, calluses-live in water, and some calluses seem to be able to resist the cold, so they can spend the winter safely.