The woodlouse spider is noted for its deep red coloring and its large fangs, or chelicerae. Our cool and wet summer has led to an abundance of woodlice—a.k.a. sowbugs and roly-polies—and hence an abundance of woodlouse spiders. August 29, 2014 Woodlouse Spider Lousy. It’s a crummy term, even under the best of circumstances. That is,