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Oxysternon
''Oxysternon'' is a Neotropical genus of scarab beetles (Scarabaeidae) in the superfamily Scarabaeoidea. It can be distinguished from all other phanaeines and scarabaeine dung beetles by a long, spiniform extension of the anterior angle of the metasternum. Most species vary in color and pattern, and are more commonly found in tones of green, often infused with yellow or coppery highlights. All species appear very smooth or glassy smooth to the unaided eye. Taxonomy Nomenclature The genus ''Sternaspis'' was proposed first by Hope in 1837, but the name was preoccupied and thus invalid. Laporte, writing under the pen name of Le Compte de Castelnau, proposed the genus ''Oxysternon'' to include several species of '' Phanaeus''-like species. ''O. festivum'' was later designated as the type species., pag82/ref> Phylogeny The genus is monophyletic and its sister group is the genus '' Phanaeus''. Two subgenera and two further species groups are recognized by some authors. It has been s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oxysternon Macleayi
''Oxysternon'' is a Neotropical genus of scarab beetles (Scarabaeidae) in the superfamily Scarabaeoidea. It can be distinguished from all other Phanaeini, phanaeines and Scarabaeinae, scarabaeine dung beetles by a long, spiniform extension of the anterior angle of the metasternum. Most species vary in color and pattern, and are more commonly found in tones of green, often infused with yellow or coppery highlights. All species appear very smooth or glassy smooth to the unaided eye. Taxonomy Nomenclature The genus ''Sternaspis'' was proposed first by Hope in 1837, but the name was preoccupied and thus invalid. Francis de Laporte de Castelnau, Laporte, writing under the pen name of Le Compte de Castelnau, proposed the genus ''Oxysternon'' to include several species of ''Phanaeus (beetle), Phanaeus''-like species. ''O. festivum'' was later designated as the type species., pag82/ref> Phylogeny The genus is monophyletic and its sister group is the genus ''Phanaeus (beetle), Phanaeus''. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oxysternon Palaemon
''Oxysternon'' is a Neotropical genus of scarab beetles (Scarabaeidae) in the superfamily Scarabaeoidea. It can be distinguished from all other phanaeines and scarabaeine dung beetles by a long, spiniform extension of the anterior angle of the metasternum. Most species vary in color and pattern, and are more commonly found in tones of green, often infused with yellow or coppery highlights. All species appear very smooth or glassy smooth to the unaided eye. Taxonomy Nomenclature The genus ''Sternaspis'' was proposed first by Hope in 1837, but the name was preoccupied and thus invalid. Laporte, writing under the pen name of Le Compte de Castelnau, proposed the genus ''Oxysternon'' to include several species of '' Phanaeus''-like species. ''O. festivum'' was later designated as the type species., pag82/ref> Phylogeny The genus is monophyletic and its sister group is the genus '' Phanaeus''. Two subgenera and two further species groups are recognized by some authors. It has been s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oxysternon Festivum
''Oxysternon festivum'' is a species of dung beetle of the scarab beetle family. It is a common, diurnal species from northeastern South America and Trinidad where it mostly inhabits forest. Taxonomy and nomenclature ''Oxysternon festivum'' was among the first dung beetle species studied by zoologist in the early 18th century. The first illustration of an "exceedingly beautiful shining gold and red, three horned beetle" was published in 1747 by August Johann Rösel von Rosenhof, and a first description was done by Laurens Theodorus Gronovius in 1764, but the names applied were non-binomial and therefore invalid for nomenclatural purposes., pag29/ref>, pag149/ref> It was later re-described by Carl Linnaeus under the name of ''Scarabaeus festivus'', and was subsequently included in most publications regarding exotic insects in the late 18th and early 19th centuries., pag82/ref>, pag110/ref>, pag23/ref> ''O. festivum'' was once assigned to the genus ''Sternaspis'', but the name ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oxysternon Conspicillatum
''Oxysternon conspicillatum'' is a species of dung beetle in the family Scarabaeidae. It is found in both evergreen and semi-deciduous mesic forests, including Disturbance (ecology), disturbed habitats, ranging from near sea level to an altitude of in the Amazon basin and El Chocó, Chocó of tropical South America and Panama, possibly extending as far west as the border region with Costa Rica. Both adults and young of this common and widespread beetle primarily Coprophagia, feed on dung, but the species has also been recorded Scavenger, feeding on dead animals. ''O. conspicillatum'' has been studied as a potential source for antimicrobial agents, with the possible use of its Antimicrobial peptides, host defense peptides in the development of new antibiotics. Appearance Adult ''O. conspicillatum'' have a length of .Hamel-Leigue, A.H., ''et al.'' (2009)Distribución e historia natural de escarabajos coprófagos de la tribu Phanaeini (Coleoptera: Scarabaeidae: Scrarabaeinae) en ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Guiana Shield
The Guiana Shield (; ; ; ) is one of the three cratons of the South American Plate. It is a 1.7 billion-year-old Precambrian geological formation in northeast South America that forms a portion of the northern coast. The higher elevations on the shield are called the Guiana Highlands, which is where the table-like mountains called tepuis are found. The Guiana Highlands are also the source of some of the world's most well-known waterfalls such as Angel Falls, Kaieteur Falls and Cuquenan Falls. The Guiana Shield underlies Guyana (previously ''British Guiana''), Suriname (previously ''Dutch Guiana''), and French Guiana (or ''Guyane''), much of southern Venezuela, as well as parts of Colombia and Brazil. The rocks of the Guiana Shield consist of metasediments and metavolcanics ( greenstones) overlain by sub-horizontal layers of sandstones, quartzites, shales and conglomerates intruded by sills of younger mafic intrusives such as gabbros. Geology The oldest rocks in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
