Mountain-stream
Guides
Gonomyia
Gonomyia is a genus of crane flies in the family Limoniidae, established by Meigen in 1818. The genus contains numerous species organized into multiple subgenera, including Gonomyia, Gonomyina, Idiocerodes, Leiponeura, Megalipophleps, Neolipophleps, Paralipophleps, Prolipophleps, and Teuchogonomyia. Fossil evidence from Cretaceous amber deposits in Spain and Myanmar indicates the genus originated by at least the Upper Albian, approximately 100 million years ago. Species diversity spans multiple continents with modern records from Europe, Asia, and the Americas.
Zapada
forestflies, spring stoneflies, little brown stoneflies
Zapada is a genus of small spring stoneflies in the family Nemouridae, commonly known as forestflies or little brown stoneflies. The genus contains at least 10 described species distributed across western North America, from Alaska and the Rocky Mountains to California. Adults are 5–8 mm in body length and emerge in early spring, often February through April depending on elevation and species. Nymphs are aquatic shredders that process leaf litter and other organic matter in cold, well-oxygenated streams.