Pollution-tolerance
Guides
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.
Tanypodinae
Tanypods
Tanypodinae is a subfamily of non-biting midges within Chironomidae, distinguished by predominantly predatory larval ecology. Larvae possess specialized mouthparts adapted for capturing small invertebrate prey, including other chironomid larvae, setting them apart from the primarily detritivorous or filter-feeding larvae of most other chironomid subfamilies. First and second instar larvae additionally consume algae. The subfamily exhibits broad ecological tolerance, with species occurring in diverse freshwater habitats from pristine rivers to heavily polluted mine drainage systems. Tanypodinae serves as an important component of macrozoobenthos and functions as a biological indicator for aquatic ecosystem assessment.