Taeniopterygidae are a family of stone flies with about 110 described extant species. They are commonly called willowflies or winter stoneflies and have a holarctic distribution. Adults are usually smaller than 15 mm.
Soyedina is a genus of stoneflies belonging to the family Nemouridae. This exclusively Nearctic genus was originally erected as a subgenus of Nemoura but was elevated to genus status by Joachim Illies in 1966. There are currently 11 described species, most only identifiable by small differences in the genitalia.
The Capniidae, the small winter stoneflies, are a family of insects in the stonefly order (Plecoptera). It constitutes one of the largest stonefly families, containing some 300 species distributed throughout the holarctic. Their closest relatives are the rolled-winged stoneflies (Leuctridae).
Chloroperlidae are a family of stoneflies, commonly known as green stoneflies, with more than 200 species and 22 genera. They appear green to yellow in colour, and are popularly used among fisherman as bait for trout fishing. Green stoneflies live in the benthic zone of the cold streams and rivers of five continents and four zoogeographical regions, emerging from the water to live in the riparian zone as adults. They are sensitive to pollutants, making them an indicator species for determining the quality of water bodies. Chloroperlidae are hemimetabolous, having no pupal stage, but instead hatch from eggs as nymphs and mature directly into adults. They are omnivorous, feeding on small organisms and plant particles, and become more carnivorous as they mature. The classification of Chloroperlidae is contested, with some believing that they should be considered as members of different orders, as opposed to the order Plecoptera that they currently belong to.
Isoperla is a genus of Palaearctic and Nearctic stoneflies in the subfamily Isoperlinae and the family Perlodidae.
Lednia is a monotypic genus, containing the single species Lednia tumana —a rare, alpine, aquatic insect that is endangered due to likely loss of glaciers and snowpacks in the Glacier National Park and other habitat in the Rocky Mountains due to climate change. The differentiation from the other Nemourids is to look at the abdominal stremite which only the Lednia and paranemoura lack the vesicles of the 9th abdominal stermite. The insect lives in the coldest streams just downstream of the glacier or snowbank sources and is considered as an early warning indicator species of climate warming in mountain ecosystems.The way the aquatic insects in this case Lednia tumana is able to use biochemical and physiological strategies in order to dimmish cold stress which allows them to survive colder climates The Fisheries and Wildlife Service is being petitioned to protect the species under the U.S..Endangered Species Act.
The Leuctridae are a family of stoneflies. They are known commonly as rolled-winged stoneflies and needleflies. This family contains at least 390 species.
Ostrocerca truncata, the truncate forestfly, is a species of spring stonefly in the family Nemouridae. It is found in North America.
Zapada is a genus of spring stoneflies in the family Nemouridae. There are at least 10 described species in Zapada.
Nemourinae is a subfamily of stoneflies in the family Nemouridae. Species of the Nemourinae have been recorded in the Nearctic, Palaearctic and Oriental realms.
Amphinemura is a genus of spring stoneflies in the family Nemouridae. There are about 18 described species in Amphinemura.
Ostrocerca is a genus of spring stoneflies in the family Nemouridae. There are about six described species in Ostrocerca.
Agnetina is a genus of common stoneflies in the family Perlidae. There are at least 30 described species in Agnetina.
Zapada cinctipes, the common forestfly, is a species of spring stonefly in the family Nemouridae. It is found in North America.
Sweltsa is a genus of green stoneflies in the family Chloroperlidae. There are more than 50 described species in Sweltsa.
Nemoura arctica is a species of spring stonefly in the family Nemouridae.
Nemoura is a genus of spring stoneflies in the family Nemouridae. There are more than 190 described species in Nemoura.
Prostoia is a genus of spring stoneflies in the family Nemouridae. There are about five described species in Prostoia.
Podmosta is a genus of spring stoneflies in the family Nemouridae. There are about six described species in Podmosta.
Paranemoura is a genus of spring stoneflies in the family Nemouridae. There are at least two described species in Paranemoura.
