|
Peltoperlidae
The Peltoperlidae, also known as roach-like stoneflies or roachflies, are a family of stoneflies. The family Peltoperlidae comprises 11 genera and 46 known species. Species are semivoltine, meaning their lifecycles last 1 to 2 years. Adults of the family usually emerge in late spring or early summer, April through June. Larvae are flattened and brown in color, and they are roach-like in appearance because of the expanded thoracic plates covering the bases of their legs, heads, and abdomens. Tapering gills occur on the thorax at the bases of the legs. These tracheal gills are multifunctional and key to many biological processes. No dense tufts or branching gills are found on their thoraces or abdomens, unlike other Plecoptera families. The larvae also possess broad, chisel-like mandibles. Adults have two ocelli in addition to its two compound eyes. Male epiprocts are sclerotized and rod-like in shape, and both sexes lack cross-veins in the anal lobe of the forewings. Peltoper ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plecoptera
Plecoptera is an order of insects, commonly known as stoneflies. Some 3,500 species are described worldwide, with new species still being discovered. Stoneflies are found worldwide, except Antarctica. Stoneflies are believed to be one of the most primitive groups of Neoptera, with close relatives identified from the Carboniferous and Lower Permian geological periods, while true stoneflies are known from fossils only a bit younger. Their modern diversity, however, apparently is of Mesozoic origin. Plecoptera are found in both the Southern and Northern Hemispheres, and the populations are quite distinct, although the evolutionary evidence suggests species may have crossed the equator on a number of occasions before once again becoming geographically isolated. All species of Plecoptera are intolerant of water pollution, and their presence in a stream or still water is usually an indicator of good or excellent water quality. Description and ecology Stoneflies have a generaliz ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yoraperla
''Yoraperla'' is a genus of roach-like stoneflies in the family Peltoperlidae. There are about eight described species in ''Yoraperla''. Species These eight species belong to the genus ''Yoraperla'': * '' Yoraperla altaica'' Devyatkov, 2003 * '' Yoraperla brevis'' (Banks, 1907) * '' Yoraperla han'' Stark & Nelson, 1994 * '' Yoraperla mariana'' (Ricker, 1943) (brown roachfly) * '' Yoraperla nigrisoma'' (Banks, 1948) (black roachfly) * '' Yoraperla siletz'' Stark & Nelson, 1994 * '' Yoraperla uchidai'' Stark & Nelson, 1994 * '' Yoraperla uenoi'' (Kohno, 1946) References Further reading * * Plecoptera Articles created by Qbugbot {{plecoptera-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tallaperla
''Tallaperla'' is a genus of roach-like stoneflies in the family Peltoperlidae. There are about seven described species in ''Tallaperla''. Species These seven species belong to the genus ''Tallaperla'': * '' Tallaperla anna'' (Needham & Smith, 1916) * '' Tallaperla cornelia'' (Needham & Smith, 1916) * '' Tallaperla elisa'' Stark, 1983 * '' Tallaperla laurie'' (Ricker, 1952) * '' Tallaperla lobata'' Stark, 1983 * '' Tallaperla maiyae'' Kondratieff, Kirchner & Zuellig, 2007 * '' Tallaperla maria'' (Needham & Smith, 1916) (common roachfly) References Further reading * * External links * Plecoptera Articles created by Qbugbot {{plecoptera-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sierraperla
''Sierraperla'' is a genus of roach-like stoneflies in the family Peltoperlidae. There are at least two described species in ''Sierraperla''. Species These two species belong to the genus ''Sierraperla'': * '' Sierraperla cora'' (Needham & Smith, 1916) (giant roachfly) * '' Sierraperla tolowa'' Stark & Kondratieff, 2015 References Further reading * * Plecoptera Articles created by Qbugbot {{plecoptera-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peter Walter Claassen
Peter may refer to: People * List of people named Peter, a list of people and fictional characters with the given name * Peter (given name) ** Saint Peter (died 60s), apostle of Jesus, leader of the early Christian Church * Peter (surname), a surname (including a list of people with the name) Culture * Peter (actor) (born 1952), stage name Shinnosuke Ikehata, Japanese dancer and actor * ''Peter'' (album), a 1993 EP by Canadian band Eric's Trip * ''Peter'' (1934 film), a 1934 film directed by Henry Koster * ''Peter'' (2021 film), Marathi language film * "Peter" (''Fringe'' episode), an episode of the television series ''Fringe'' * ''Peter'' (novel), a 1908 book by Francis Hopkinson Smith * "Peter" (short story), an 1892 short story by Willa Cather Animals * Peter, the Lord's cat, cat at Lord's Cricket Ground in London * Peter (chief mouser), Chief Mouser between 1929 and 1946 * Peter II (cat), Chief Mouser between 1946 and 1947 * Peter III (cat), Chief Mouser between ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leaf Litter
Plant litter (also leaf litter, tree litter, soil litter, litterfall or duff) is dead plant material (such as leaves, bark, needles, twigs, and cladodes) that have fallen to the ground. This detritus or dead organic material and its constituent nutrients are added to the top layer of soil, commonly known as the litter layer or O horizon ("O" for "organic"). Litter is an important factor in ecosystem dynamics, as it is indicative of ecological productivity and may be useful in predicting regional nutrient cycling and soil fertility. Characteristics and variability Litterfall is characterized as fresh, undecomposed, and easily recognizable (by species and type) plant debris. This can be anything from leaves, cones, needles, twigs, bark, seeds/nuts, logs, or reproductive organs (e.g. the stamen of flowering plants). Items larger than 2 cm diameter are referred to as coarse litter, while anything smaller is referred to as fine litter or litter. The type of litterfall is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
