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Zaitzevia Thermae
''Zaitzevia thermae'', also called the warm springs zaitzevian riffle beetle, is a flightless, wingless small beetle found in aquatic habitats in Montana. Description The species is distinguished from other elmids by its 8–segmented antennae, its side–lying and silk like elytra, pimply abdominal sternum, and other minor genetic differences. In general, but not always, the more slender form of ''Z. thermae'' can visually differentiate it from its sister species, ''Z. parvula''. Taxonomy ''Zaitzevia thermae'' is sometimes treated as a synonym of or subspecies to '' Z. parvula''; though this appears to be because a morphology report by Hooter in 1991 went unpublished and widely unread, which concluded that ''Z. thermae'' was its own distinct species and not a subspecies of another member of the genus. Due to this and the fact that the species is appropriately listed by the US Fish and Wildlife Service, ''Z. thermae'' is generally considered its own unique species. Distrib ...
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Melville Hatch
Melville Harrison Hatch (1898–1988) was an American entomologist who specialized in the study of beetles. His long career at the University of Washington was highlighted by the publication of the seminal, five-volume work ''Beetles of the Pacific Northwest''. Hatch is responsible for the identification and naming of 13 species. Early life and education Melville Hatch was born in Detroit, Michigan and attended Detroit Central High School. He began collecting insects at age 15 and went on to study biology at the University of Michigan, from where he graduated in 1919, afterwards going on to earn a Ph.D. in 1928. Career Brief teaching stints at Millikin University and the University of Minnesota were followed by an appointment as assistant professor at the University of Washington, where Hatch would spend the rest of his career. He was subsequently chosen to chair the zoology department, following the retirement of Trevor Kincaid and, in 1962, was appointed curator of entomol ...
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Montana
Montana () is a U.S. state, state in the Mountain states, Mountain West List of regions of the United States#Census Bureau-designated regions and divisions, division of the Western United States. It is bordered by Idaho to the west, North Dakota and South Dakota to the east, Wyoming to the south, and the Provinces and territories of Canada, Canadian provinces of Alberta, British Columbia, and Saskatchewan to the north. It is the List of U.S. states and territories by area, fourth-largest state by area, the List of U.S. states and territories by population, eighth-least populous state, and the List of U.S. states and territories by population density, third-least densely populated state. Its state capital is Helena, Montana, Helena. The western half of Montana contains numerous mountain ranges, while the eastern half is characterized by western prairie terrain and badlands, with smaller mountain ranges found throughout the state. Montana has no official nickname but several ...
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Elmidae
Elmidae, commonly known as riffle beetles, is a family of beetles in the superfamily Byrrhoidea described by John Curtis in 1830. Both adults and larvae are usually aquatic, living under rocks in fast-flowing shallow areas of streams, such as riffles, feeding on algae and biofilms. There are more than 150 genera and 1,500 described species in Elmidae. The oldest record of the group is '' Cretohypsilara'' from the Cenomanian aged Burmese amber Burmese amber, also known as Burmite or Kachin amber, is amber from the Hukawng Valley in northern Myanmar. The amber is dated to around 100 million years ago, during the latest Albian to earliest Cenomanian ages of the mid-Cretaceous period. .... See also * List of Elmidae genera References Further reading * * * * * External links * Polyphaga families {{Elmidae-stub ...
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Elytron
An elytron (; ; , ) is a modified, hardened forewing of beetles (Coleoptera), though a few of the true bugs ( Hemiptera) such as the family Schizopteridae are extremely similar; in true bugs, the forewings are called hemelytra (sometimes alternatively spelled as "hemielytra"), and in most species only the basal half is thickened while the apex is membranous, but when they are entirely thickened the condition is referred to as "coleopteroid". An elytron is sometimes also referred to as a shard. Description The elytra primarily serve as protective wing-cases for the hindwings underneath, which are used for flying. To fly, a beetle typically opens the elytra and then extends the hindwings, flying while still holding the elytra open, though many beetles in the families Scarabaeidae and Buprestidae can fly with the elytra closed (e.g., most Cetoniinae; ). In a number of groups, the elytra are reduced to various degrees, (e.g., the beetle families Staphylinidae and Ripiphoridae), o ...
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Sternum (arthropod Anatomy)
The sternum (pl. "sterna") is the ventral portion of a segment of an arthropod thorax or abdomen. In insects, the sterna are usually single, large sclerites, and external. However, they can sometimes be divided in two or more, in which case the subunits are called sternites, and may also be modified on the terminal abdominal segments so as to form part of the functional genitalia, in which case they are frequently reduced in size and development, and may become internalized and/or membranous. For a detailed explanation of the terminology, see Kinorhynchs have tergal and sternal plates too, though seemingly not homologous with those of arthropods.Sørensen, M. V. et al. Phylogeny of Kinorhyncha based on morphology and two molecular loci. PLoS One 10, 1–33 (2015). Ventrites are externally visible sternites. Usually the first sternite is covered up, so that vertrite numbers do not correspond to sternid numbers. The term is also used in other arthropod groups such as crustacea ...
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Zaitzevia Parvula
''Zaitzevia parvula'' is a species of riffle beetle in the family Elmidae Elmidae, commonly known as riffle beetles, is a family (biology), family of beetles in the superfamily Byrrhoidea described by John Curtis (entomologist), John Curtis in 1830. Both adults and larvae are usually aquatic, living under rocks in fas .... It is found in North America. Subspecies These two subspecies belong to the species ''Zaitzevia parvula'': * ''Zaitzevia parvula parvula'' (Horn, 1870) * ''Zaitzevia parvula thermae'' (Hatch, 1938) References Further reading * * * Elmidae Articles created by Qbugbot Beetles described in 1870 {{Elateriformia-stub ...
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United States Fish And Wildlife Service
The United States Fish and Wildlife Service (USFWS or FWS) is an agency within the United States Department of the Interior dedicated to the management of fish, wildlife, and natural habitats. The mission of the agency is "working with others to conserve, protect, and enhance fish, wildlife, plants and their habitats for the continuing benefit of the American people." Among the responsibilities of the USFWS are enforcing federal wildlife laws; protecting endangered species; managing migratory birds; restoring nationally significant fisheries; conserving and restoring wildlife habitats, such as wetlands; helping foreign governments in international conservation efforts; and distributing money to fish and wildlife agencies of U.S. states through the Wildlife Sport Fish and Restoration Program. The vast majority of fish and wildlife habitats are on U.S. state, state or private land not controlled by the United States government. Therefore, the USFWS works closely with private g ...
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Bridger Creek
Bridger Creek is a stream in the U.S. state of South Dakota. Bridger Creek has the name of Jim Bridger, an explorer. See also *List of rivers of South Dakota This is a list of rivers in the state of South Dakota in the United States. By tributary Minnesota River watershed * Little Minnesota River **Jorgenson River *Whetstone River *North Fork Yellow Bank River *South Fork Yellow Bank River *West Bran ... References Rivers of Haakon County, South Dakota Rivers of Ziebach County, South Dakota Rivers of South Dakota {{SouthDakota-river-stub ...
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Bozeman, Montana
Bozeman is a city and the county seat of Gallatin County, Montana, United States. Located in southwest Montana, the 2020 census put Bozeman's population at 53,293, making it the fourth-largest city in Montana. It is the principal city of the Bozeman, MT Micropolitan Statistical Area, consisting of all of Gallatin County with a population of 118,960. Due to the fast growth rate Bozeman is expected to be upgraded to Montana's fourth metropolitan area. It is the largest micropolitan statistical area in Montana, the fastest growing micropolitan statistical area in the United States in 2018, 2019 and 2020, as well as the third-largest of all Montana's statistical areas. The city is named after John M. Bozeman, who established the Bozeman Trail and was a founder of the town in August 1864. The town became incorporated in April 1883 with a city council form of government, and in January 1922 transitioned to its current city manager/ city commission form of government. Bozem ...
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NatureServe Conservation Status
The NatureServe conservation status system, maintained and presented by NatureServe in cooperation with the Natural Heritage Network, was developed in the United States in the 1980s by The Nature Conservancy (TNC) as a means for ranking or categorizing the relative imperilment of species of plants, animals, or other organisms, as well as natural ecological communities, on the global, national or subnational levels. These designations are also referred to as NatureServe ranks, NatureServe statuses, or Natural Heritage ranks. While the Nature Conservancy is no longer substantially involved in the maintenance of these ranks, the name TNC ranks is still sometimes encountered for them. NatureServe ranks indicate the imperilment of species or ecological communities as natural occurrences, ignoring individuals or populations in captivity or cultivation, and also ignoring non-native occurrences established through human intervention beyond the species' natural range, as for example wi ...
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Microcylloepus Browni
''Microcylloepus'' is a genus of riffle beetles in the family Elmidae. There are about 9 described species in ''Microcylloepus''. Species * ''Microcylloepus angustus'' Hinton, 1940 * '' Microcylloepus browni'' (Hatch, 1938) * '' Microcylloepus formicoideus'' Shepard, 1990 (furnace creek riffle beetle) * '' Microcylloepus inaequalis'' (Sharp, 1882) * '' Microcylloepus moapus'' La Rivers, 1949 * '' Microcylloepus obesus'' Hinton, 1940 * ''Microcylloepus pusillus ''Microcylloepus pusillus'' is a species of riffle beetle in the family Elmidae Elmidae, commonly known as riffle beetles, is a family of beetles in the superfamily Byrrhoidea described by John Curtis in 1830. Both adults and larvae are usua ...'' (Leconte, 1852) * '' Microcylloepus similis'' Horn * '' Microcylloepus thermarum'' (Darlington, 1928) References Further reading * * * Elmidae {{Elateriformia-stub ...
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Natural History Of Montana
Nature, in the broadest sense, is the physical world or universe. "Nature" can refer to the phenomena of the physical world, and also to life in general. The study of nature is a large, if not the only, part of science. Although humans are part of nature, human activity is often understood as a separate category from other natural phenomena. The word ''nature'' is borrowed from the Old French ''nature'' and is derived from the Latin word ''natura'', or "essential qualities, innate disposition", and in ancient times, literally meant "birth". In ancient philosophy, ''natura'' is mostly used as the Latin translation of the Greek word ''physis'' (φύσις), which originally related to the intrinsic characteristics of plants, animals, and other features of the world to develop of their own accord. The concept of nature as a whole, the physical universe, is one of several expansions of the original notion; it began with certain core applications of the word φύσις by pre-Socr ...
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