Acid-mine-drainage
Guides
Oligostomis
giant casemakers
Oligostomis is a genus of giant casemaker caddisflies in the family Phryganeidae, established by Kolenati in 1848. The genus contains at least four described species distributed across the Northern Hemisphere. One species, O. ocelligera, has been documented inhabiting acidic mine drainage environments in Pennsylvania, demonstrating tolerance to extreme pH conditions. Members construct portable cases from plant material, characteristic of the family.
Oligostomis ocelligera
giant casemaker
Oligostomis ocelligera is a species of giant casemaker caddisfly in the family Phryganeidae. It has been documented inhabiting acidic mine drainage environments in Pennsylvania, demonstrating tolerance to extreme conditions including low pH and high metal concentrations. The species is known from North America.