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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. Th .... See also * List of Elmidae genera References Further reading * * * * * External links * Polyphaga families {{Elmidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ancyronyx Schillhammeri
''Ancyronyx'', commonly known as spider water beetles or spider riffle beetles, is a genus of aquatic riffle beetles from North America, South Asia, China, and Southeast Asia. They are small beetles with extremely long legs ending in strong claws. Both the adults and the larvae are found underwater in the shallow riffles of streams and rivers, clinging to rocks or submerged wood. They feed on algae and decaying wood tissue. The genus contains twenty-one species, eleven of which are endemic to the Philippines. Taxonomy The genus ''Ancyronyx'' was established in 1847 by the German entomologist Wilhelm Ferdinand Erichson based on the type species '' Macronychus variegatus'' first described in 1824 by the German coleopterologist Ernst Friedrich Germar. It was regarded as a monotypic species until the French entomologist Antoine Henri Grouvelle described the second species, ''A. acaroides'' in 1896. It is the sole member of the tribe Ancyronychini, and is classified under the subfa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Byrrhoidea
Byrrhoidea is a superfamily of beetles belonging to Elateriformia that includes several families which are either aquatic or associated with a semi-aquatic habitat. Other than the superfamily Hydrophiloidea, most of the remaining Polyphagan beetles which are aquatic are in this superfamily. Description Adults of many Byrrhoidea have exocone eyes (with expanded corneal lens). The anterior edge of the scutellar shield is often abruptly elevated (except in Psephenidae and Cneoglossidae). A variety of byrrhoids have the first three abdominal ventrites solidly fused together. Larvae of most Limnichidae have one pair of anal hooks on the tenth abdominal segment, while Cneoglossidae and Ptilodactylidae have three or more hooks on each side of this segment. Larvae of Lutrochidae and Elmidae, as well as the limnichid genus ''Hyphalus'', have anal gill tufts. Almost all byrrhoid larvae have anterior abdominal spiracles that are biforous (or bilabiate) in shape. The degree of wing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Elmidae Genera
These 152 genera belong to the family Elmidae, riffle beetles. There are at least 1,500 described species in Elmidae. Elmidae genera * '' Aesobia'' Jäch, 1982 * '' Amazonopsis'' Barr, 2018 * '' Ampumixis'' Sanderson, 1954 * '' Amrishelmis'' Makhan, 2007 * '' Ancyronyx'' Erichson, 1847 * '' Anommatelmis'' Spangler, 1981 * '' Aspidelmis'' Delève, 1954 * '' Atractelmis'' Chandler, 1954 * '' Aulacosolus'' Jäch & Boukal, 1997 * '' Austrelmis'' Brown, 1984 * '' Austrolimnius'' Carter & Zeck, 1929 * '' Bryelmis'' Barr, 2011 * '' Cephalolimnius'' Delève, 1973 * '' Cleptelmis'' Sanderson, 1954 * '' Coxelmis'' Carter & Zeck, 1929 * '' Ctenelmis'' Delève, 1964 * '' Cuspidevia'' Jäch & Boukal, 1995 * '' Cylloepus'' Erichson, 1847 * '' Disersus'' Sharp, 1882 * '' Dryopomorphus'' Hamilton, 1936 * '' Dubiraphia'' Sanderson, 1954 * '' Dupophilus'' Mulsant & Rey, 1872 * '' Elachistelmis'' Maier, 2012 * '' Elmidolia'' Fairmaire, 1879 * '' Elmis'' Latreille, 1802 * '' Elpidelmis'' Delève, 196 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elminae
Elminae is a subfamily of riffle beetles in the family Elmidae. There are at least 120 genera and more than 1,300 described species in Elminae. Genera These genera belong to the subfamily Elminae. * '' Aesobia'' Jäch, 1982 * '' Amazonopsis'' Barr, 2018 * '' Ampumixis'' Sanderson, 1954 * '' Ancyronyx'' Erichson, 1847 * '' Anommatelmis'' Spangler, 1981 * '' Aspidelmis'' Delève, 1954 * '' Atractelmis'' Chandler, 1954 * '' Aulacosolus'' Jäch & Boukal, 1997 * '' Austrelmis'' Brown, 1984 * '' Austrolimnius'' Carter & Zeck, 1929 * '' Bryelmis'' Barr, 2011 * '' Cephalolimnius'' Delève, 1973 * '' Cleptelmis'' Sanderson, 1954 * '' Coxelmis'' Carter & Zeck, 1929 * '' Ctenelmis'' Delève, 1964 * '' Cuspidevia'' Jäch & Boukal, 1995 * '' Cylloepus'' Erichson, 1847 * '' Dubiraphia'' Sanderson, 1954 * '' Dupophilus'' Mulsant & Rey, 1872 * '' Elachistelmis'' Maier, 2012 * '' Elmidolia'' Fairmaire, 1879 * '' Elmis'' Latreille, 1802 * '' Elpidemis'' Delève, 1964 * '' Eonychius'' Jäch & Bouka ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Larainae
Larainae is a subfamily of riffle beetles in the family Elmidae. There are more than 20 genera and 160 described species in Larainae. Genera These 28 genera belong to the subfamily Larainae: * '' Disersus'' Sharp, 1882 * '' Dryopomorphus'' Hamilton, 1936 * '' Hexanchorus'' Sharp, 1882 * '' Hispaniolara'' Brown, 1981 * '' Hydora'' Broun, 1882 * '' Hydrethus'' Fairmaire, 1889 * '' Hypsilara'' Maier & Spangler, 2011 * '' Jaechomorphus'' Kodada, 1993 * '' Laorina'' Jäch, 1997 * ''Lara'' LeConte, 1852 * '' Microlara'' Jäch, 1993 * '' Neblinagena'' Spangler, 1985 * '' Omotonus'' Delève, 1963 * '' Ovolara'' Brown, 1981 * '' Parapotamophilus'' Brown, 1981 * '' Phanoceroides'' Hinton, 1939 * '' Phanocerus'' Sharp, 1882 * '' Pharceonus'' Spangler & Santiago-Fragoso, 1992 * '' Potamocares'' Grouvelle, 1920 * '' Potamodytes'' Grouvelle, 1896 * '' Potamogethes'' Delève, 1963 * '' Potamolatres'' Delève, 1963 * '' Potamophilinus'' Grouvelle, 1896 * '' Potamophilops'' Grouvelle, 1896 * '' P ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Curtis (entomologist)
John Curtis (3 September 1791 – 6 October 1862) was an English entomology, entomologist and illustrator. Biography Curtis was born in Norwich to Frances and Charles Morgan Curtis. Charles Morgan died before his son had reached the age of 4. His mother, Frances, had a passion for flowers and was a professional flower grower. She encouraged her son to study natural history with a young local naturalist, Richard Walker (naturalist), Richard Walker (1791–1870). At the age of 16 John became an apprentice at a local lawyer's office in Norwich but devoted his spare time to studying and drawing insects and, with insect collecting becoming a growing craze, he found he could make a living selling the specimens he found. At this time he became a friend of Simon Wilkin (1790–1862) a wealthy land owner in Norfolk, eventually leaving his job to live with Wilkin at Cossey Hall where the extensive natural history library and specimen collection afforded him the opportunity to study his e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
COLE Elmidae Hydora Picea
Cole may refer to: People and fictional characters * Cole (given name), including a list of people and fictional characters with the given name * Cole (surname), including a list of people and fictional characters with the surname * Cole tribe, an earlier name for the Kol people of India Places England * Cole, Somerset, a hamlet ** Cole (for Bruton) railway station, a former station in the hamlet * River Cole, West Midlands, which flows directly through Birmingham * River Cole, Wiltshire, which flows through Wiltshire and Oxfordshire, where it forms the border United States * Cole, Denver, Colorado, a statistical neighborhood within the consolidated city and county * Cole, Oklahoma, a town * Cole City, Georgia, a ghost town * Cole County, Missouri * Cole County, original name of Union County, South Dakota * Cole Creek (Pennsylvania), a stream * Cole Creek (South Dakota), a stream * Cole Township (other) Elsewhere * Cole Peninsula, Antarctica * Côle, a river in sou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Family (biology)
Family (, : ) is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between order and genus. A family may be divided into subfamilies, which are intermediate ranks between the ranks of family and genus. The official family names are Latin in origin; however, popular names are often used: for example, walnut trees and hickory trees belong to the family Juglandaceae, but that family is commonly referred to as the "walnut family". The delineation of what constitutes a family—or whether a described family should be acknowledged—is established and decided upon by active taxonomists. There are not strict regulations for outlining or acknowledging a family, yet in the realm of plants, these classifications often rely on both the vegetative and reproductive characteristics of plant species. Taxonomists frequently hold varying perspectives on these descriptions, leading to a lack of widespread consensus within the scientific community ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Beetle
Beetles are insects that form the Taxonomic rank, order Coleoptera (), in the superorder Holometabola. Their front pair of wings are hardened into wing-cases, elytra, distinguishing them from most other insects. The Coleoptera, with about 400,000 described species, is the largest of all orders, constituting almost 40% of described arthropods and 25% of all known animal species; new species are discovered frequently, with estimates suggesting that there are between 0.9 and 2.1 million total species. However, the number of beetle species is challenged by the number of species in Fly, dipterans (flies) and hymenopterans (wasps). Found in almost every habitat except the sea and the polar regions, they interact with their ecosystems in several ways: beetles often feed on plants and fungi, break down animal and plant debris, and eat other invertebrates. Some species are serious agricultural pests, such as the Colorado potato beetle, while others such as Coccinellidae (ladybirds or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Riffle
A riffle is a shallow landform in a flowing channel. Colloquially, it is a shallow place in a river where water flows quickly past rocks. However, in geology a riffle has specific characteristics. Topographic, sedimentary and hydraulic indicators Riffles are almost always found to have a very low discharge compared to the flow that fills the channel (approximately 10–20%), and as a result the water moving over a riffle appears shallow and fast, with a wavy, disturbed water surface. The water's surface over a riffle at low flow also has a much steeper slope than that over other in-channel landforms. Channel sections with a mean water surface slope of roughly 0.1 to 0.5% exhibit riffles, though they can occur in steeper or gentler sloping channels with coarser or finer bed materials, respectively. Except in the period after a flood (when fresh material is deposited on a riffle), the sediment on the riverbed in a riffle is usually much coarser than on that in any other in-chan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
