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Myxophaga
Myxophaga is the second-smallest suborder of the Coleoptera after Archostemata, consisting of roughly 65 species of small to minute beetles in four families. The members of this suborder are aquatic and semiaquatic, and feed on algae. Description Myxophaga have several diagnostic features: the antennae are more or less distinctly clubbed with usually fewer than nine segments, mesocoxal cavities are open laterally and bordered by a mesepimeron and metanepisternum, the hind wings are rolled apically in the resting positions. Internally, they are characterised by the presence of six malpighian tubules and the testes are tube-like and coiled. Beetles of this suborder are adapted to feed on algae. Their mouthparts are characteristic in lacking galeae and having a mobile tooth on their left mandible. Taxonomy There are four extant families in the suborder Myxophaga divided between two superfamilies, containing about 65 described species, and at least one extinct family. Superfamil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sphaeriusidae
Myxophaga is the second-smallest suborder of the Coleoptera after Archostemata, consisting of roughly 65 species of small to minute beetles in four families. The members of this suborder are aquatic and semiaquatic, and feed on algae. Description Myxophaga have several diagnostic features: the antennae are more or less distinctly clubbed with usually fewer than nine segments, mesocoxal cavities are open laterally and bordered by a mesepimeron and metanepisternum, the hind wings are rolled apically in the resting positions. Internally, they are characterised by the presence of six malpighian tubules and the testes are tube-like and coiled. Beetles of this suborder are adapted to feed on algae. Their mouthparts are characteristic in lacking galeae and having a mobile tooth on their left mandible. Taxonomy There are four extant families in the suborder Myxophaga divided between two superfamilies, containing about 65 described species, and at least one extinct family. Superfamily ... [...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] |
Lepicerus
''Lepicerus'' is a genus of myxophagan beetles containing three described species in the family Lepiceridae; it is the only extant genus in the family, with another genus, '' Lepiceratus'' only known from fossils.Jałoszyński, Paweł; Luo, Xiao-Zhu; Hammel, Jörg U.; Yamamoto, Shûhei & Beutel, Rolf G. (2020). "The mid-Cretaceous †''Lepiceratus'' gen. nov. and the evolution of the relict beetle family Lepiceridae (Insecta: Coleoptera: Myxophaga)". ''Journal of Systematic Palaeontology''. 18 (13). Extant species occur in the Neotropics, from Mexico south to Venezuela and Ecuador. Fossils referrable to the genus are known from the early Late Cretaceous of Southeast Asia. Species * '' Lepicerus bufo'' * '' Lepicerus inaequalis'' * '' Lepicerus pichilingue'' Three additional species are known from the Late Cretaceous (Cenomanian) as inclusions in Burmese amber Burmese amber, also known as Burmite or Kachin amber, is amber from the Hukawng Valley in northern Myanmar. The am ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydroscaphidae
The Hydroscaphidae are a small family of water beetles known commonly as skiff beetles. As of 2010, there are 23 species in the family. Several are recently described. These beetles are small, most under in length. They are tan to brown in color and the elytra are abbreviated, leaving several tapering tergites of the abdomen exposed. The wings are fringed with long setae. The larvae are fusiform, with a wide thorax and a narrowing abdomen. Hydroscaphidae live on mats of algae with a thin layer of running water. This may be the accumulated algae lining the very edge of a stream of water. They tolerate a wide range of temperatures; they have been observed in hot springs and in icy snowmelt. The algae are their food source. The reproductive cycle is not well known. In at least one species, the female lays a single large egg on the algal mat. Hydroscaphid species have been reported from every continent except Antarctica. Genera: * '' Hydroscapha'' LeConte, 1874 – United Sta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lepiceridae
''Lepicerus'' is a genus of myxophagan beetles containing three described species in the family Lepiceridae; it is the only extant genus in the family, with another genus, '' Lepiceratus'' only known from fossils.Jałoszyński, Paweł; Luo, Xiao-Zhu; Hammel, Jörg U.; Yamamoto, Shûhei & Beutel, Rolf G. (2020). "The mid-Cretaceous †''Lepiceratus'' gen. nov. and the evolution of the relict beetle family Lepiceridae (Insecta: Coleoptera: Myxophaga)". ''Journal of Systematic Palaeontology''. 18 (13). Extant species occur in the Neotropics, from Mexico south to Venezuela and Ecuador. Fossils referrable to the genus are known from the early Late Cretaceous of Southeast Asia. Species * '' Lepicerus bufo'' * '' Lepicerus inaequalis'' * '' Lepicerus pichilingue'' Three additional species are known from the Late Cretaceous (Cenomanian) as inclusions in Burmese amber Burmese amber, also known as Burmite or Kachin amber, is amber from the Hukawng Valley in northern Myanmar. The am ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sphaerius
''Sphaerius'' is a genus of beetles in the family Sphaeriusidae, comprising 18 extant species. It is one of the two extant genera in the family, the other being '' Bezesporum''. They are typically found along the edges of streams and rivers, where they feed on algae; they occur on all continents except Antarctica. Three species occur in the United States. The overall form of the beetle is convex, glossy, dark brown or black with some markings possible. The head is prominent, with relatively large eyes set far apart, and capitate antennae. Total length ranges from . The beetles occur in a variety of damp environments, including mud, under stones, among plant roots and leaf litter, and in mosses in bogs. They store some air underneath their elytra. Females produce a single large egg at a time. The family used to be known as "Sphaeriidae", but the name was preoccupied by a family of freshwater clams. The name was inappropriately replaced with "Microsporidae" (by changing the ge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yara (beetle)
''Yara'' is a genus of beetles in the family Hydroscaphidae, from South America and Central America. Containing five species: * '' Yara dybasi'' – Panama * '' Yara vanini'' – Brazil * '' Yara maculata'' – Venezuela * '' Yara marmontsedu'' – Nicaragua * '' Yara oyaguei'' – Peru Peru, officially the Republic of Peru, is a country in western South America. It is bordered in the north by Ecuador and Colombia, in the east by Brazil, in the southeast by Bolivia, in the south by Chile, and in the south and west by the Pac ... References External links Tree of Life entry for Hydroscaphidae, with pictures Myxophaga genera {{Hydroscaphidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Satonius
''Satonius'' is a genus of beetles in the family Torridincolidae. It is native to East Asia. The type species, ''S. kurosawai'', was originally described as a species of ''Delevea''. Several other species have been described since. References Monotypic beetle genera Myxophaga genera Beetles described in 1982 {{Torridincolidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Triamyxidae
''Triamyxa'' is an extinct genus of myxophagan beetle in the monotypic family Triamyxidae from the Carnian stage of Late Triassic, approximately 230 million years ago. It was found in the Keuper Claystone of Poland. The type species is ''Triamyxa coprolithica'' and it was identified from specimens found in the coprolite ZPAL AbIII/3520, likely belonging to the dinosauriform '' Silesaurus opolensis''. Because ''Triamyxa'' specimens were found inside coprolites, this may offer a new method of finding insect fossils aside from amber. It is currently the oldest known member of Myxophaga. It was interpreted as either the most basal member of Myxophaga, or a sister group to Hydroscaphidae The Hydroscaphidae are a small family of water beetles known commonly as skiff beetles. As of 2010, there are 23 species in the family. Several are recently described. These beetles are small, most under in length. They are tan to brown in col .... The specimens were preserved in 3D, with ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Archostemata
The Archostemata are the smallest suborder of beetles, consisting of 50 living species in five families and over 200 described fossil species. They are an ancient lineage with a number of primitive characteristics. Antenna (biology), Antennae may be thread-shaped (filiform) or like a string of beads (moniliform). This suborder also contains the only beetles where both sexes are Neoteny, paedogenic, ''Micromalthus debilis''. Modern archostematan beetles are considered rare, but were more diverse during the Mesozoic. The term "Archostemata" is used more broadly by some authors to include both modern archostematans as well as stem-group beetles like "protocoleopterans", which some modern archostematans closely resemble to due to their Plesiomorphy and symplesiomorphy, plesiomorphic morphology. Genetic research suggests that modern archostematans are a monophyletic group. Some genetic studies have recovered archostematans as the sister group of Myxophaga. A 2009 paper argued that th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Torridincolidae
The Torridincolidae are a small family of beetles in the suborder Myxophaga. It contains these genera: at Joel Hallan’s Biology Catalog. Texas A&M University. Retrieved on 11 May 2012. * '' Claudiella'' Reichardt & Vanin, 1976 – * '' Delevea'' Reichardt, 1976 – Southern * '' < ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
