Chilostigma is a genus of caddisflies in the family Limnephilidae. All of its members are found in Scandinavia and Finland, apart from Chilostigma itascae, which has only been recorded from Nicollet Creek in the Mississippi River's headwaters of Itasca State Park, Minnesota, and Chilostigma sieboldi, which is known from both European localities and Hokkaido in Japan. Other North American species were formerly placed in this genus. The four known species are: