Spring-stoneflies
Guides
Nemoura
spring stoneflies
Nemoura is a genus of spring stoneflies in the family Nemouridae, with more than 190 described species. The genus belongs to the subfamily Nemourinae within the superfamily Nemouroidea. Species in this genus are part of the EPT (Ephemeroptera, Plecoptera, Trichoptera) complex, a group of aquatic insects with significant ecological importance in freshwater ecosystems.
Ostrocerca
forestflies
Ostrocerca is a genus of spring stoneflies (Plecoptera) in the family Nemouridae, containing six described species distributed in eastern North America. Members are small to medium-sized stoneflies commonly known as forestflies. The genus was established by Ricker in 1952. Species are distinguished by subtle morphological differences in wing venation and genitalia.
Podmosta
spring stoneflies
Podmosta is a genus of spring stoneflies in the family Nemouridae, comprising approximately six described species distributed across northern North America and the Russian Far East. The genus is notable for its adaptation to cold climates, including documented embryonic diapause in at least one species. Adults are active in spring, with nymphal development occurring primarily during winter months.