Published online by Cambridge University Press: 31 May 2012
Two Old World limnephilid genera are recorded from North America for the first time: Chilostigma with C. itascae n. sp; and Ecclisocosmoecus to which is transferred the former Ecclisomyia scylla Milne. Three new species are also described in other genera: Dicosmoecus schmidi n. sp., Cryptochia denningi n. sp., and Neothremma andersoni n. sp. The taxonomic status of the genus Psychoronia is reviewed.