Woodlice
This week’s arthropod is probably Porcellio scaber, the common rough woodlouse. I found these under a toolbox in the basement. We don’t have many of them at the moment, because the basement is currently quite dry. Since they are crustaceans and actually breathe through gills, woodlice can’t tolerate dry conditions because their gills dry out. In the summer, when condensation makes the basement kind of damp, they become much more plentiful. They seem to be eating mildew and similar organic debris.