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Argiope Katherina
''Argiope katherina'' is a species of orb-weaver spider found in the northern parts of the Northern Territory and Western Australia. It was first described by Levi in 1983 and was named for Katherine Gorge. Specimens had been found at the mouth of split rock crevices up to one hundred metres from the Katherine River in sparse ''Pandanus ''Pandanus'' is a genus of monocots with some 750 accepted species. They are palm-like, dioecious trees and shrubs native to the Old World tropics and subtropics. The greatest number of species are found in Madagascar and Malaysia. Common names ...''-dominated territory. Description ''Argiope katherina'' rests with its legs in four pairs on a web that often has zig-zag web decorations consisting of one to four radials. The carapace is brown covered with a light coloured down. The sternum is black with a median longitudinal mark. The abdomen has a distinctive reticulate pattern outlined with white zig-zag margins at the edges, and three o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Herbert Walter Levi
Herbert Walter Levi (January 3, 1921 – November 3, 2014) was professor emeritus of zoology and curator of arachnology at the Museum of Comparative Zoology, Harvard University. He was born in Germany, educated there and at Leighton Park School, Reading in England. He then received his higher education at the University of Connecticut and the University of Wisconsin. Levi authored about 150 scientific papers on spiders and on biological conservation. He is the author of the popular Golden Guide ''Spiders and their Kin'', with Lorna Rose Levi (his wife) and Herbert Spencer Zim. Levi received the 2007 Eugene Simon Award from the International Society of Arachnology "for his immense influence on US spider research". He was an elected honorary member of the American Arachnological Society. Levi was an editorial board member for the ''Journal of Arachnology''. The pseudoscorpion genus ''Levichelifer'', the spider species ''Anisaedus levii'' and the whip spider species ''Phrynus levii''D ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Orb-weaver Spider
Orb-weaver spiders are members of the spider family Araneidae. They are the most common group of builders of spiral wheel-shaped webs often found in gardens, fields, and forests. The English word "orb" can mean "circular", hence the English name of the group. Araneids have eight similar eyes, hairy or spiny legs, and no stridulating organs. The family has a cosmopolitan distribution, including many well-known large or brightly colored garden spiders. With 3,108 species in 186 genera worldwide, the Araneidae comprise the third-largest family of spiders (behind the Salticidae and Linyphiidae). Araneid webs are constructed in a stereotypical fashion, where a framework of nonsticky silk is built up before the spider adds a final spiral of silk covered in sticky droplets. Orb webs are also produced by members of other spider families. The long-jawed orb weavers (Tetragnathidae) were formerly included in the Araneidae; they are closely related, being part of the superfamily Arane ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Northern Territory
The Northern Territory (commonly abbreviated as NT; formally the Northern Territory of Australia) is an states and territories of Australia, Australian territory in the central and central northern regions of Australia. The Northern Territory shares its borders with Western Australia to the west (129th meridian east), South Australia to the south (26th parallel south), and Queensland to the east (138th meridian east). To the north, the territory looks out to the Timor Sea, the Arafura Sea and the Gulf of Carpentaria, including Western New Guinea and other islands of the Indonesian archipelago. The NT covers , making it the third-largest Australian federal division, and List of country subdivisions by area, the 11th-largest country subdivision in the world. It is sparsely populated, with a population of only 249,000 – fewer than half as many people as in Tasmania. The largest population center is the capital city of Darwin, Northern Territory, Darwin. The archaeological hist ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Western Australia
Western Australia (commonly abbreviated as WA) is a state of Australia occupying the western percent of the land area of Australia excluding external territories. It is bounded by the Indian Ocean to the north and west, the Southern Ocean to the south, the Northern Territory to the north-east, and South Australia to the south-east. Western Australia is Australia's largest state, with a total land area of . It is the second-largest country subdivision in the world, surpassed only by Russia's Sakha Republic. the state has 2.76 million inhabitants percent of the national total. The vast majority (92 percent) live in the south-west corner; 79 percent of the population lives in the Perth area, leaving the remainder of the state sparsely populated. The first Europeans to visit Western Australia belonged to the Dutch Dirk Hartog expedition, who visited the Western Australian coast in 1616. The first permanent European colony of Western Australia occurred following the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Katherine Gorge
Nitmiluk National Park is in the Northern Territory of Australia, 244 km southeast of Darwin, and 23 km northeast of the town of Katherine, around a series of gorges on the Katherine River and Edith Falls. Previously named Katherine Gorge National Park, its northern edge borders Kakadu National Park. The gorges and the surrounding landscape have great ceremonial significance to the local Jawoyn people, who are custodians of Nitmiluk National Park. In the Jawoyn language, ''Nitmiluk'' means "place of the cicada dreaming". Nitmiluk (Katherine) Gorge Nitmiluk Gorge, a deep gorge carved through ancient sandstone by the Katherine River, is the central attraction of the park. Nitmiluk Gorge is made up of thirteen gorges, with rapids and falls, and follow the Katherine River, which begins in Kakadu. During the Dry, roughly from April to October, the Nitmiluk Gorge waters are placid in most spots and ideal for swimming and canoeing. There may be freshwater crocodiles in m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Katherine River
Katherine River is located in the Northern Territory, Australia. Its headwaters are in Nitmiluk National Park, it flows through the town of Katherine, and is a major tributary of the Daly River. The Katherine River drops around 384m over its 328 km length. History The first European to see and name the river was the Scottish explorer John McDouall Stuart on 4 July 1862, who named it Katherine after Catherine Chambers, the second daughter of expedition sponsor, the pastoralist James Chambers. The major town Katherine was named after the river. In late January 1998, heavy rain associated with Cyclone Les raised the level of the river by more than 20 metres and flooded a large part of Katherine town. A more recent flood on 6 April 2006 caused a state of emergency to be declared. During this event the river peaked at a height of just below 19 metres at the Katherine bridge on the Stuart Highway. Wildlife Freshwater crocodiles inhabit the entire river, but while saltwater ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pandanus
''Pandanus'' is a genus of monocots with some 750 accepted species. They are palm-like, dioecious trees and shrubs native to the Old World tropics and subtropics. The greatest number of species are found in Madagascar and Malaysia. Common names include pandan, screw palm, and screw pine. They are classified in the order Pandanales, family Pandanaceae. Description Often called pandanus palms, these plants are not closely related to palm trees. The species vary in size from small shrubs less than tall, to medium-sized trees tall, typically with a broad canopy, heavy fruit, and moderate growth rate. The trunk is stout, wide-branching, and ringed with many leaf scars. Mature plants can have branches. Depending on the species, the trunk can be smooth, rough, or warty. The roots form a pyramidal tract to hold the trunk. They commonly have many thick stilt roots near the base, which provide support as the tree grows top-heavy with leaves, fruit, and branches. These roots are adven ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Argiope Mascordi
''Argiope mascordi'' is a species of orb-web spider found in Queensland, Australia. The females of this species are smaller and less colourful than many other spiders in the genus '' Argiope''. Males are larger than many other ''Argiope''. Web decorations in this species are interesting in that ''A. mascordi'' juveniles construct a cross and adults construct a disc. The reason for this apparent reversal in decorating behaviour remains unknown. Gallery Argiope mascordi 6831.jpg, Adult female with circular stabilimentum and male spider at the top left behind the web Argiope mascordi 8166.jpg, Juvenile with X shaped stabilimentum Argiope mascordi 4290.jpg, Female with typical spiral web decoration north Queensland Argiope mascordi male 5084-2.jpg, Male with enlarged cephalothorax The cephalothorax, also called prosoma in some groups, is a tagma of various arthropods, comprising the head and the thorax fused together, as distinct from the abdomen behind. (The terms ''prosoma' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Argiope Dietrichae
''Argiope dietrichae'' is a rare species of orb-web spider found in the northern parts of Western Australia and the Northern Territory. It was first described by Levi in 1983, and it was named for Amalie Dietrich who collected specimens for the Godeffroy Museum in Hamburg. Description ''Argiope dietrichae'' rest on their web head down with legs arranged in four sets of two. They have a brown carapace streaked with light coloured down. The abdomen has a tessellated pattern similar to ''Argiope katherina ''Argiope katherina'' is a species of orb-weaver spider found in the northern parts of the Northern Territory and Western Australia. It was first described by Levi in 1983 and was named for Katherine Gorge. Specimens had been found at the mo ...'' but differs ventrally by a narrower rim and septum of the epigyne. The sternum has a median posterior white mark. The legs are light brown with darker spots and bands. Females are larger than males, with adult females up to 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Argiope (spider)
The genus ''Argiope'' includes rather large spiders that often have a strikingly coloured abdomen. These spiders are distributed throughout the world. Most countries in tropical or temperate climates host one or more species that are similar in appearance. The etymology of ''Argiope'' is from a Latin word ''argentum'' meaning silver. The carapace of ''Argiope'' species is typically covered in silvery hairs, and when crawling in the sun, they reflect it in a way that gives them a metallic, white appearance. Description As most orb weavers, they own a third claw which is used to weave their complex webs. As most spiders, there is also a significant amount of sexual dimorphism, females measuring 19 to 28mm and males measuring 5 to 9mm. Their webs are relatively big, usually with zigzag patterns in them. They own black and yellow patterning all around their body, occasionally on their legs. Their legs mainly being black, with red or yellow patterning closer to the body. Their cep ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spiders Of Australia
Australia has a number of highly venomous spiders, including the Sydney funnel-web spider, its relatives in the family Hexathelidae, and the redback spider, whose bites can be extremely painful and have historically been linked with deaths in medical records. Most Australian spiders do not have venom that is considered to be dangerously toxic. No deaths caused by spider bites in Australia have been substantiated by a coronial inquest since 1979. There are sensationalised news reports regarding Australian spiders that fail to cite evidence. ''A Field Guide to Spiders of Australia'' published by CSIRO Publishing in 2017 featuring around 836 species illustrated with photographs of live animals, around 381 genera and 78 families, introduced significant updates to taxonomy from Ramirez, Wheeler and Dmitrov Estimates put the total number of Australian spider species at about 10,000. Only around 3,600 have been described. Little information is known about many undiscovered species. New s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
