Cold-water-insects
Guides
Bolshecapnia
small winter stoneflies
Bolshecapnia is a genus of small winter stoneflies in the family Capniidae, first described by Ricker in 1965 as a subgenus of Capnia and later elevated to genus rank. The genus currently comprises four species distributed in western North America. Members of this genus are adapted to cold-water environments and exhibit the characteristic winter-emergence pattern typical of Capniidae.
Diamesinae
Diamesinae is a subfamily of non-biting midges (Chironomidae) primarily associated with cold-water habitats, particularly glacial-fed streams. The subfamily includes several tribes: Diamesini, Boreoheptagyiini, Protanypini, and two fossil tribes (Cretodiamesini, Eugenodiamesini). Genera such as Diamesa are among the dominant insect colonizers of kryal habitats in alpine regions. Species delimitation in this group often requires integrative approaches combining DNA barcoding with pupal morphology, as adult males of some genera show limited morphological differentiation.