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Ascyltus Pterygodes
''Ascyltus pterygodes'' is a cosmopolitan jumping spider of the Pacific. The spider belongs to the genus ''Ascyltus'', a group of jumping spiders identified by their relatively large size and the iridescent scales on their carapace. Description ''A. pterygodes'' are large to very large specimens. In addition to iridescent scales on the antero-lateral carapace ''A. pterygodes'' have very large and prominent cheek areas with their chelicerae distended forward. Other identifying features include the absence of lateral spines on the first metatarsi, three rows of eyes, and a large multicusped tooth. Behavior ''A. pterygodes'' are a rare sighting during most parts of the year but seem to go into hiding during the spring where none were found to be observed. Diet ''A. pterygodes'' will not limit itself to just insects, rather it will even eat its own kind. ''Ascyltus pterygodes'' is also known to control the outbreak of coconut moths in Fiji. Habitat Many found specimens of ''A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ludwig Carl Christian Koch
Ludwig Carl Christian Koch (8 November 1825 – 1 November 1908) was a German entomologist and arachnologist. He was born in Regensburg, Germany, and died in Nuremberg, Germany. He studied in Nuremberg, initially law, but then turned to medicine and science. From 1850, he practiced as a physician in the Wöhrd district of Nuremberg. He is considered among the four most influential scientists on insects and spiders in the second half of the 19th century. He wrote numerous works on the arachinoids of Europe, Siberia, and Australia. His work earned him worldwide reputation as "Spider Koch". Sometimes confused with his father Carl Ludwig Koch (1778–1857), another famous arachnologist, his name is abbreviated L.Koch on species descriptions; his father's name is abbreviated C.L.Koch Pierre Bonnet. ''Bibliographia araneorum,'' (1945) Les frères Doularoude (Toulouse). Works ''Die Arachniden Australiens'' (1871-1883), his major work on Australian spiders, was completed by Eugen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jumping Spider
Jumping spiders are a group of spiders that constitute the family (biology), family Salticidae. As of 2019, this family contained over 600 described genera and over 6,000 described species, making it the largest family of spiders at 13% of all species. Jumping spiders have some of the best vision among arthropods and use it in courtship, hunting, and navigation. Although they normally move unobtrusively and fairly slowly, most species are capable of very agile jumps, notably when hunting, but sometimes in response to sudden threats or crossing long gaps. Both their book lungs and Invertebrate trachea, tracheal system are well-developed, and they use both systems (bimodal breathing). Jumping spiders are generally recognized by their eye pattern. All jumping spiders have four pairs of eyes, with the Anatomical terms of location, anterior median pair being particularly large. Distinguishing characteristics Jumping spiders are among the easiest to distinguish from similar spider f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus comes above species and below family (taxonomy), family. 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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ascyltus
''Ascyltus'' are a genus of jumping spiders in the family Salticidae that was first described by Ferdinand Karsch, Ferdinand Anton Franz Karsch in 1878. , the genus contained 10 species. ''Ascyltus'' spiders utilize their vision in courtship, hunting, and navigation. They are typically large to medium-sized salticids and often move relatively slowly. However, they are capable of agile jumps when moving, hunting, or to avoid predators. They have well developed book lungs and tracheal systems, and they are capable of utilizing both systems. ''Ascyltus'' have four pairs of eyes, with the anterior median pair being the most prominent. One distinguishable characteristic of the genus is their antero-lateral carapace, which is iridescently coloured. Distinguishing characteristics ''Ascyltus'' are relatively large to medium-sized salticids, distinguishable from other Pacific salticids by their antero-lateral carapace, which is iridescently coloured. In addition to being iridescently co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seasonality Of A
In time series data, seasonality is the presence of variations that occur at specific regular intervals less than a year, such as weekly, monthly, or quarterly. Seasonality may be caused by various factors, such as weather, vacation, and holidays and consists of periodic, repetitive, and generally regular and predictable patterns in the levels of a time series. Seasonal fluctuations in a time series can be contrasted with cyclical patterns. The latter occur when the data exhibits rises and falls that are not of a fixed period. Such non-seasonal fluctuations are usually due to economic conditions and are often related to the "business cycle"; their period usually extends beyond a single year, and the fluctuations are usually of at least two years. Organisations facing seasonal variations, such as ice-cream vendors, are often interested in knowing their performance relative to the normal seasonal variation. Seasonal variations in the labour market can be attributed to the entrance o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Metrosideros Polymorpha
''Metrosideros polymorpha'', the ''ōhia lehua'', is a species of flowering evergreen tree in the myrtle family, Myrtaceae, that is endemic to the six largest islands of Hawaii. It is a highly variable tree, being tall in favorable situations, and a much smaller prostrate shrub when growing in boggy soils or directly on basalt. It produces a brilliant display of flowers, made up of a mass of stamens, which can range from fiery red to yellow. Many native Hawaiian traditions refer to the tree and the forests it forms as sacred to Pele, the volcano goddess, and to Laka, the goddess of hula. Ōhia trees grow easily on lava, and are usually the first plants to grow on new lava flows. It is a common misconception that the word ''ōhia'' is used to refer to the tree and that the word ''lehua'' refers only to its flowers. ''The Hawaiian Dictionary'' (Pukui and Elbert 1986: 199) defines ''lehua'' with these words: "The flower of the ''ōhia'' tree... ''also the tree itself'' mphasis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acacia Koa
''Acacia koa'' or commonly known as koa is a species of flowering tree in the family Fabaceae. It is endemic to the Hawaiian Islands, where it is the second most common tree. The highest populations are on Hawaii, Maui and Oahu. Name The name ''koa'' in the Hawaiian language ultimately comes from Proto-Austronesian *''teRas'' meaning "core" or "ironwood"; many names referring to certain ironwood or heartwood species in Southeast Asia and Oceania such as ''Vitex parviflora'' (''tugás'' in Cebuano), ''Eusideroxylon zwageri'' (''togas'' in Tombonuwo), and ''Intsia bijuga'' (''dort'' in Palauan) descend from this root. ''Koa'' also means brave, bold, fearless, or warrior. Description Koa is a large tree, typically attaining a height of and a spread of . In deep volcanic ash, a koa tree can reach a height of , a circumference of , and a spread of . It is one of the fastest-growing Hawaiian trees, capable of reaching in five years on a good site. Leaves Initially, bipinnat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hilo District, Hawaii
Hilo is a moku or district on the Big Island of Hawaiʻi in the State of Hawaii, U.S.A. In the current system of administration of Hawaiʻi County, the moku of Hilo is divided into North Hilo District (''Hilo ‘Akau'') and South Hilo District (''Hilo Hema''). Hilo is located on the eastern, windward side of the island, enjoying abundance of rainfall, and therefore includes the island's most populated town, also called Hilo. North Hilo District In the District of North Hilo, there are, along Hawaii State Highway 19 from north to south, the following unincorporated towns and localities: * ʻŌʻōkala * Laupāhoehoe and the Train Museum * Ninole and others. Inland, along State Highway 200, are: * Mauna Kea mountain road and Puu Huluhulu and others. South Hilo District In the District of South Hilo, there are, along State Highway 19, the following unincorporated towns and localities: * Honomu and the Akaka Falls * Pepeekeo * Wainaku * Hilo Bay, the Wailuku River ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hyllus (spider)
''Hyllus'' is a genus of the spider family Salticidae (jumping spiders). Most species occur in Africa and Madagascar, with many in Australasia and north to India. ''H. insularis'' is found in Greece and Iran, but it is considered misplaced in this genus,Logunov 2001 and is now ''Evarcha insularis''. Description They are medium to large spiders, commonly mistaken by those in the genus ''Evarcha''. They are usually stout, hairy and dully colored. They usually have horns at the top of the median eyes formed by long bristles. They have a rounded carapace, which is larger than the eye field. Those in the genus ''Evarcha'' are usually smaller and their carapace is thinner. Name Hyllus was the son of Heracles and Deianira in Greek mythology. Species , the World Spider Catalog accepted these species: *'' Hyllus acutus'' ( Blackwall, 1877) – Comoro Islands, Seychelles *'' Hyllus aegyptiacus'' (Denis, 1947) – Egypt *''Hyllus africanus'' Lessert, 1927 – Congo basin *'' Hyllus al ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ferdinand Karsch
Ferdinand Anton Franz Karsch or Karsch-Haack (2 September 1853, in Münster – 20 December 1936, in Berlin) was a German arachnologist, entomologist and anthropologist. The son of a doctor, Karsch was educated at the Friedrich Wilhelm University in Berlin and published a thesis on the gall wasp in 1877. From 1878 to 1921 he held the post of curator at the Museum für Naturkunde Berlin. Between 1873 and 1893, he published a catalogue of the spiders of Westphalia; he also published numerous articles on the specimens that the museum received from various explorers and naturalists working in Africa, in China, in Japan, in Australia, etc. This publication of others' work sometimes led to disputes over priority and nomenclature, for example with Pickard-Cambridge. Alongside his zoological activities, he published many works on sexuality and, in particular, homosexuality in both the animal kingdom and in so-called "primitive" peoples, including ''Das gleichgeschlechtliche Leben ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spiders Described In 1865
Spiders (order Araneae) are air-breathing arthropods that have eight legs, chelicerae with fangs generally able to inject venom, and spinnerets that extrude silk. They are the largest order of arachnids and rank seventh in total species diversity among all orders of organisms. Spiders are found worldwide on every continent except for Antarctica, and have become established in nearly every land habitat. , 50,356 spider species in 132 families have been recorded by taxonomists. However, there has been debate among scientists about how families should be classified, with over 20 different classifications proposed since 1900. Anatomically, spiders (as with all arachnids) differ from other arthropods in that the usual body segments are fused into two tagmata, the cephalothorax or prosoma, and the opisthosoma, or abdomen, and joined by a small, cylindrical pedicel, however, as there is currently neither paleontological nor embryological evidence that spiders ever had a separate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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