Case Bearing Caterpillar

#5522  Hello, I live in Winnipeg, Manitoba and I’ve been finding these guys attached to the outside of my house. I have also found a few indoors either hanging from the ceiling or crawling up a wall. They first appear like dirt or a small splinter sized stick.. until you get up close and see that it’s in some kind of shell with its head poking out from the top. Please help identify. Thanks!

This is a case-bearing caterpillar of some sort, but I cannot see enough detail for a definitive identification. It might be one of the bagworms in the family Psychidae.  Ed Saugstad, retired entomologist; Sinks Grove, WV.