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Nephila Sumptuosa
''Nephila sumptuosa'', the red-legged golden orb-web spider, is a species of golden orb-web spider ''Nephila'' is a genus of araneomorph spiders noted for the impressive webs they weave. ''Nephila'' consists of numerous species found in warmer regions around the world. They are commonly called golden silk orb-weavers, golden orb-weavers, gian .... Description ''Nephila sumptuosa'' can reach a length of in males, of in females. These large spiders have long reddish legs with clumps of hair. The abdomen is blackish and shows a series of whitish spots. As is usual among orb-weavers, there is marked sexual dimorphism in general appearance, but especially in size. Distribution This species is present in East Africa and in Socotra. References Bibliography *Gerstäcker, A. (1873) Arachnoidea., In von der Decken, C. (ed.), Reisen in Ostafrica. Leipzig, 3(2): 461-503 (Araneae, pp. 473–503). *Pickard-Cambridge, O. (1898b). Arachnida. In: Dixey, F., Mal Burr, & O. Pickard ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carl Eduard Adolph Gerstaecker
Carl Eduard Adolph Gerstaecker (30 August 1828 – 20 June 1895) was a German zoologist, entomologist and professor at the University of Berlin and then the University of Greifswald. Biography Gerstaecker was born in Berlin, where he studied medicine and natural sciences, receiving his PhD in 1855 as a student of Johann Christoph Friedrich Klug. In 1856 he obtained his habilitation for zoology, and soon afterwards, became a curator at the Zoological Museum of Humboldt University. In 1864 he began work as a lecturer at the Landwirtschaftlichen Lehranstalt (Agricultural Educational Facility) in Berlin. In 1874 he became an associate professor for zoology at the University of Berlin, and in 1876, a professor of zoology at the University of Greifswald. He died in Greifswald. Works * ''Monographie der Endomychiden'' (1858) – Monograph on Endomychidae. * ''Handbuch der Zoologie'' (with Wilhelm Peters und Julius Victor Carus), Leipzig (1863-1875). * (Arthropoda) * Arthropod ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Golden Orb-web Spider
''Nephila'' is a genus of araneomorph spiders noted for the impressive webs they weave. ''Nephila'' consists of numerous species found in warmer regions around the world. They are commonly called golden silk orb-weavers, golden orb-weavers, giant wood spiders, or banana spiders. Etymology The genus name ''Nephila'' is derived from Ancient Greek, meaning "fond of spinning", from the words νεῖν (''nein'') = to spin (related to ''nema'' νήμα "thread") + φίλος (''philos'') = "love". Description ''Nephila'' spiders vary from reddish to greenish yellow in color with distinctive whiteness on the cephalothorax and the beginning of the abdomen. Like many species of the superfamily Araneoidea, most of them have striped legs specialized for weaving (where their tips point inward, rather than outward as is the case with many wandering spiders). Their contrast of dark brown/black and green/yellow allows warning and repelling of potential predators to which their venom might be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sexual Dimorphism
Sexual dimorphism is the condition where the sexes of the same animal and/or plant species exhibit different morphological characteristics, particularly characteristics not directly involved in reproduction. The condition occurs in most animals and some plants. Differences may include secondary sex characteristics, size, weight, colour, markings, or behavioural or cognitive traits. These differences may be subtle or exaggerated and may be subjected to sexual selection and natural selection. The opposite of dimorphism is ''monomorphism'', which is when both biological sexes are phenotypically indistinguishable from each other. Overview Ornamentation and coloration Common and easily identified types of dimorphism consist of ornamentation and coloration, though not always apparent. A difference in coloration of sexes within a given species is called sexual dichromatism, which is commonly seen in many species of birds and reptiles. Sexual selection leads to the exaggerated dim ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Socotra
Socotra or Soqotra (; ar, سُقُطْرَىٰ ; so, Suqadara) is an island of the Republic of Yemen in the Indian Ocean, under the ''de facto'' control of the UAE-backed Southern Transitional Council, a secessionist participant in Yemen’s ongoing civil war. Lying between the Guardafui Channel and the Arabian Sea and near major shipping routes, Socotra is the largest of the four islands in the Socotra archipelago. Since 2013, the archipelago has constituted the Socotra Governorate. The island of Socotra represents around 95% of the landmass of the Socotra archipelago. It lies south of the Arabian Peninsula, but is considered to be part of Africa. The island is isolated and home to a high number of endemic species. Up to a third of its plant life is endemic. It has been described as "the most alien-looking place on Earth." The island measures in length and in width. In 2008 Socotra was recognised as a UNESCO World Heritage Site. In 2018, the United Arab Emirates invaded ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Araneidae
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 Araneo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spiders Of Africa
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 t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fauna Of Socotra
Socotra or Soqotra (; ar, سُقُطْرَىٰ ; so, Suqadara) is an island of the Republic of Yemen in the Indian Ocean, under the ''de facto'' control of the UAE-backed Southern Transitional Council, a secessionist participant in Yemen’s ongoing civil war. Lying between the Guardafui Channel and the Arabian Sea and near major shipping routes, Socotra is the largest of the four islands in the Socotra archipelago. Since 2013, the archipelago has constituted the Socotra Governorate. The island of Socotra represents around 95% of the landmass of the Socotra archipelago. It lies south of the Arabian Peninsula, but is considered to be part of Africa. The island is isolated and home to a high number of endemic species. Up to a third of its plant life is endemic. It has been described as "the most alien-looking place on Earth." The island measures in length and in width. In 2008 Socotra was recognised as a UNESCO World Heritage Site. In 2018, the United Arab Emirates invaded ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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