Open AccessStudies of Nearctic Aquatic Insects
Author(s) -
Herbert H. Ross,
Theodore H. Frison
Publication year - 1937
Publication title -
illinois natural history survey bulletin/bulletin - illinois natural history survey
Language(s) - English
Resource type - Journals
eISSN - 2644-0687
pISSN - 0073-4918
DOI - 10.21900/j.inhs.v21.260
Subject(s) - nearctic ecozone , genus , biology , male genitalia , zoology , ecology
The genus Sialis is often described to have only three species. However, Critical study of the genitalia has revealed no less than 10 eastern and six western species grouped under the name infumata. Descriptions of Plecoptera species that are newly discovered in Illinois.