Do they hibernate their eggs or emigrate back up North?
In: Biology
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Not my words but “Like all insects they don’t truly hibernate, but enter a state of diapause, which slows down their development and appetite, until temperatures rise and they become active again.”
Adult flies kind of find a warmish dryish place and kinda hibernate. They also lay eggs in the ground during the fall that won’t hatch until till the spring.
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There are shelters that are warm enough to keep eggs alive. Your house is an example. They do not emigrate.
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Depends where you are. Relatively mild winters the flies might go dormant or lay eggs that stay dormant until spring. But in harsher areas like Canada most of the flies can’t survive even doing that, so they die off, but as soon as it’s warm enough new flies arrive typically among transported food.
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I just assume 99% of them dies, and the 1% that survives repopulate the species.
At least here in Sydney, noticed that flies here are very aggressive. Maybe because they have a limited season.
In the Philippines where it’s tropical flies are ‘lazier’, because there’s no winter so they can breed all year round.
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