Oligotrophic
Guides
Asynarchus
Asynarchus is a genus of caddisflies in the family Limnephilidae, first described by McLachlan in 1880. Species are found in small, cold, oligotrophic lakes and ponds across Eurasia and Northern America. The genus includes at least two species: A. contumax and A. lapponicus. Larvae and pupae of both species have been described from central Norway.
Enallagma recurvatum
Pine Barrens Bluet, Pale Barrens Bluet
Enallagma recurvatum is a small damselfly endemic to the United States. It inhabits freshwater lakes, particularly in pine barrens and similar sandy, acidic lake systems. The species is considered threatened due to habitat loss from development, water quality degradation, and shoreline alteration. Its restricted range and specialized habitat requirements make it vulnerable to environmental changes.