What kind of animal is this? Larvae invading?

[SwiftD]

Hello, these bugs are invading our facade on more than one building! What kind of larvae are they? They are 3-4cm long and crawl on the facade. They seem particularly interested in white surfaces, but are also found on gray surfaces. On the red brick, there are only a few.

 

[BirgitS]

Since it only appears to be something that looks like a miniature black snake with two antennas, I don't think anyone can confidently identify the creature. But you can try with the duty biologist: https://www.nrm.se/faktaomnaturenochrymden/fragajourhavandebiolog.147.html

 

[Pucco]

Could be masksnigel.