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Oryctes Colonicus
''Oryctes'' is the economically most important genus of rhinoceros beetles in the subfamily Dynastinae (family: Scarabaeidae) and includes serious pests of palm trees. A total of 47 species have been assigned to the genus, including 2 fossil ones. The extant species are widely distributed in Africa, as well as in Europe, Asia and the Pacific. No established populations are known from the Americas. The species are typically between 30 and 60 mm long, dark brown to black, with a robust body and a strong cuticle. They can be distinguished from other genera in the tribe Oryctini by the structure of the pronotum, the horn on the head, the mouthparts and other features. Type species: ''Scarabaeus nasicornis'' Linnaeus, 1758, a synonym of ''Oryctes nasicornis'' Distribution Most of the extant species of ''Oryctes'' are found in Africa with only 8 species in Asia and the Pacific, 3 in the Near East and 1 in Europe. The 33 African species are mainly distributed in sub-Saharan countries, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus. :E.g. ''Panthera leo'' (lion) and ''Panthera onca'' (jaguar) are two species within the genus ''Panthera''. ''Panthera'' is a genus within the family Felidae. The composition of a genus is determined by taxonomy (biology), taxonomists. The standards for genus classification are not strictly codified, so different authorities often produce different classifications for genera. There are some general practices used, however, including the idea that a newly defined genus should fulfill these three criteria to be descriptively useful: # monophyly – all descendants of an ancestral taxon are grouped together (i.e. Phylogeneti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elaeis
''Elaeis'' () is a genus of palms, called oil palms, containing two species, native to Africa and the Americas. They are used in commercial agriculture in the production of palm oil. Description Mature palms are single-stemmed, and can grow well over tall. The leaves are pinnate, and reach between long. The flowers are produced in dense clusters; each individual flower is small, with three sepals and three petals. The palm fruit is reddish, about the size of a large plum, and grows in large bunches. Each fruit is made up of an oily, fleshy outer layer (the pericarp), with a single seed (the palm kernel), also rich in oil. Species The two species, '' E. guineensis'' (Africa) and '' E. oleifera'' (Americas) can produce fertile hybrids. The genome of ''E. guineensis'' has been sequenced, which has important implications for breeding improved strains of the crop plants. Distribution and habitat ''E. guineensis'' is native to west and southwest Africa, occurring ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oryctes Capucinus
''Oryctes'' is the economically most important genus of rhinoceros beetles in the subfamily Dynastinae (family: Scarabaeidae) and includes serious pests of palm trees. A total of 47 species have been assigned to the genus, including 2 fossil ones. The extant species are widely distributed in Africa, as well as in Europe, Asia and the Pacific. No established populations are known from the Americas. The species are typically between 30 and 60 mm long, dark brown to black, with a robust body and a strong cuticle. They can be distinguished from other genera in the tribe Oryctini by the structure of the pronotum, the horn on the head, the mouthparts and other features. Type species: ''Scarabaeus nasicornis'' Linnaeus, 1758, a synonym of '' Oryctes nasicornis'' Distribution Most of the extant species of ''Oryctes'' are found in Africa with only 8 species in Asia and the Pacific, 3 in the Near East and 1 in Europe. The 33 African species are mainly distributed in sub-Saharan countries ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oryctes Boas
''Oryctes boas'' is a species of rhinoceros beetles from the subfamily Dynastinae (family (biology), family: Scarabaeidae) which is found in many parts of sub-Saharan Africa and in some neighboring parts of the Near East. It appears to be most common in south-eastern Africa. ''O. boas'' breeds mainly in compost heaps and is a pest of coconut palms. However, in West Africa it is usually less abundant and less destructive on coconut palms compared to ''Oryctes monoceros'', a species with a similar distribution range and biology. Both species belong to the subgenus ''Rykanoryctes'' which is characterized by having 3 fixed (immovable) spikes at the tip of the hind tibia. The main morphological difference between both species is the size of the horn. In ''O. boas'' males, the horn is very long and curved backwards at the tip. ''O. boas'' is also smaller and heavier built compared to ''O. monoceros''. The pronotum of ''O. boas'' males has a large depression (concavity) with two pointed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oryctes Augias
''Oryctes'' is the economically most important genus of rhinoceros beetles in the subfamily Dynastinae (family: Scarabaeidae) and includes serious pests of palm trees. A total of 47 species have been assigned to the genus, including 2 fossil ones. The extant species are widely distributed in Africa, as well as in Europe, Asia and the Pacific. No established populations are known from the Americas. The species are typically between 30 and 60 mm long, dark brown to black, with a robust body and a strong cuticle. They can be distinguished from other genera in the tribe Oryctini by the structure of the pronotum, the horn on the head, the mouthparts and other features. Type species: ''Scarabaeus nasicornis'' Linnaeus, 1758, a synonym of '' Oryctes nasicornis'' Distribution Most of the extant species of ''Oryctes'' are found in Africa with only 8 species in Asia and the Pacific, 3 in the Near East and 1 in Europe. The 33 African species are mainly distributed in sub-Saharan countries ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Johann Karl Wilhelm Illiger
Johann Karl Wilhelm Illiger (19 November 1775 – 10 May 1813) was a German entomologist and zoologist. He founded the entomological periodical ''Magazin für Insektenkunde.'' The plant genus '' Illigera'' is named in his honour. Biography Illiger was the son of a merchant in Braunschweig. He studied under the entomologist Johann Hellwig, and later worked on the zoological collections of Johann Centurius Hoffmannsegg. He was educated at the University of Helmstedt and at Gottingen. He was unable to pursue medical studies due to tuberculosis. Illiger was invited to Berlin by Alexander von Humboldt and he became professor and director of the "zoological museum" (which is the Natural History Museum of Berlin in the present day) from its formation in 1810 until his death three years later from tuberculosis. He was the author of ''Prodromus systematis mammalium et avium'' (1811), which was an overhaul of the Linnaean system. It was a major influence on the adoption of the concept ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Johann Christian Ludwig Hellwig
Johann Christian Ludwig Hellwig (8 November 1743, in Garz/Rügen – 10 October 1831, in Braunschweig) was a German mathematician, entomologist and wargaming, wargame designer. He was a professor of mathematics at the Collegium Carolinum in Braunschweig. Biography Hellwig was born in Garz, Pomerania, son of Friedrich Ludwig Wilhelm and Dorothea nee Kolbe. After studies of mathematics and natural history at the university of Frankfurt, he became, in 1766, adviser to prince Wilhelm Adolf von Braunschweig at the time of his grand tour in the south of Russia. The prince died during this journey at Ochakiv, Oczakow and Hellwig returned to Braunschweig (Brunswick) in 1770. In 1771, he was appointed teacher of mathematics and natural sciences in two colleges of Brunswick. In 1773 he received a doctorate from the University of Helmstedt. In 1790 he was appointed to teach mathematics and natural sciences at the Collegium Carolinum in Braunschweig, becoming full professor in 1802. He taught ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oryctes Agamemnon (pronotum - Hind Tibia)
''Oryctes agamemnon'', commonly known as Arabian rhinoceros beetle, is a species of rhinoceros beetles from the subfamily Dynastinae (family (biology), family: Scarabaeidae) in the Near East and northern Africa. The larval stages are serious pests of date palms and in particular damage the respiratory roots at the base of the palms which weakens the trees and can cause them to fall down. The adult beetles bore into the stalks of the date bunches or the base of the palm fronds (leaves), often causing these to break off. Compared to many other species of ''Oryctes'', ''O. agamemnon'' adults are typically small (~ 30 mm long) and compact. They can be identified by the shape of the concavity on the pronotum, the hind tibia having three fixed spikes at the end (subgenus ''Rykanoryctes'') and the foretibia lacking a strong tooth directed downwards before its end. Four subspecies are recognized which are geographically separated: * subsp. ''agamemnon'' in north-eastern Africa, main ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
