I live in Switzerland and have noticed these small bugs appear in my bedroom, either slowly crawling on the parquet flooring, lazily buzzing around or dead on my windowsill (as pictured):
I'm not sure if these bugs are currently appearing more often – or if I just notice them more because of the fact that I'm spending a lot of time in my bedroom due to Corona lockdown.
The only hint I've got is a friend saying that they live in wooden floors. No idea if that's correct.
Thanks for any help or hints!