I stumbled upon your site, while searching for snow fleas, which a local pest company said my bug was. However I don’t believe that is it, having checked the pix I have seen, and descriptions.
I had sent them a photo I took, which I am sending. the bug was the size of a millipede- a little over an inch as I recall. I found it soon after I moved in, and picked it up (thinking it was dead) and was very surprized to have a stinging sensation which persisted for maybe 10 minutes after I wshed my hands. This is why I took the photo (on a paper towel) hoping to identify it. I never saw another.
We believe you have sent in a photo of a centipede. They are poisonous, but the bite is generally mild. Some large species grow to 8 inches or more and have a very painful bite.