What are flies

Why do flies always zigzag and stay under lamps?

Flight muscles only need to drive two large fore wings

House flies are actually some of the best fliers in the insect kingdom. In contrast to other insects - for example moths - they can change their direction very quickly in flight because they have better flight muscles than other insects. They only have two large fore wings. The entire flight musculature therefore only has to drive two and not four wings.

And they have a very special development: the hind wings are transformed into very tiny, highly developed sensory organs - the so-called swinging bulbs. And they give the flies information about where they are in space within a fraction of a second.

Flying artist: common housefly

That means, on the one hand, the fly flies faster. And besides, it can change direction much faster. A moth that has very large wings and also four wings would always fly in a circle around a light source. Also because the light has severely impaired her orientation. Flies can stand in the air. And just because of this standing and the ability to quickly change direction, the whole thing always looks very choppy. For example, a moth cannot stay in the air. But a flying artist like the common housefly does.

Switched off room lamps are of no interest

If flies fly towards the lamp during the day, I could well imagine that the lamp is hanging in the middle of the room. The fly always tries to fly as far as it can in one direction. Then she changes direction and comes back. This gives the impression that it always circles around the center of the ceiling. But it doesn't make sense that with the lamp switched off, it would remind itself that it was on the night before. It will likely be a coincidence and because the lamp is generally hanging in the middle of ceilings.

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