We just moved into a new house (on an acreage) and we are renovating. When I pulled up the carpet I noticed what looked like worm carcuses dried up. Since then I found 2 more in my husband's lunch kit, which look like living worms of what were in the carpet. I also found one in a bedroom that still has carpet. They are about 1/2" long and have ridges or strips and are black/brown. Do you know what these could be or where they would come from?