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Anelosimus Pomio
''Anelosimus pomio'' is a species of tangle-web spider found in Papua New Guinea. It was first collected in 2009 by Ingi Agnarsson, and identified by the same in 2012. It was collected from small-leaved mangrove trees adjoining a beach. It is in length, and can be distinguished from other species in its genus by the shape of the embolus. The embolus looks similar to that of ''Anelosimus chonganicus ''Anelosimus'' is a cosmopolitan genus of cobweb spiders (Theridiidae), currently containing 74 species. ''Anelosimus'' is a key group in the study of sociality and its evolution in spiders (Aviles 1997). It contains species spanning the spectru ...'' and '' Anelosimus membranaceus'': It forms a corkscrew shape with fewer turns than ''A. chongnicus'' and the turns are closer to the base than ''A. membranaceus''. It is presumed to be a solitary spider, although there are limited data. Its name is derived from the village of Pomio, in East New Britain Province, near where it ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tangle-web Spider
Theridiidae, also known as the tangle-web spiders, cobweb spiders and comb-footed spiders, is a large family of araneomorph spiders first described by Carl Jakob Sundevall in 1833. This diverse, globally distributed family includes over 3,000 species in 124 genera, and is the most common arthropod found in human dwellings throughout the world. Theridiid spiders are both entelegyne, meaning that the females have a genital plate, and ecribellate, meaning that they spin sticky capture silk instead of woolly silk. They have a comb of serrated bristles ( setae) on the tarsus of the fourth leg. The family includes some model organisms for research, including the medically important widow spiders. They are important to studies characterizing their venom and its clinical manifestation, but widow spiders are also used in research on spider silk and sexual biology, including sexual cannibalism. ''Anelosimus'' are also model organisms, used for the study of sociality, because it ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Papua New Guinea
Papua New Guinea (abbreviated PNG; , ; tpi, Papua Niugini; ho, Papua Niu Gini), officially the Independent State of Papua New Guinea ( tpi, Independen Stet bilong Papua Niugini; ho, Independen Stet bilong Papua Niu Gini), is a country in Oceania that comprises the eastern half of the island of New Guinea and its offshore islands in Melanesia (a region of the southwestern Pacific Ocean north of Australia). Its capital, located along its southeastern coast, is Port Moresby. The country is the world's third largest island country, with an area of . At the national level, after being ruled by three external powers since 1884, including nearly 60 years of Australian administration starting during World War I, Papua New Guinea established its sovereignty in 1975. It became an independent Commonwealth realm in 1975 with Elizabeth II as its queen. It also became a member of the Commonwealth of Nations in its own right. There are 839 known languages of Papua New Guinea, one of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Embolus (spider Anatomy)
The two palpal bulbs – also known as palpal organs and genital bulbs – are the copulatory organs of a male spider. They are borne on the last segment of the pedipalps (the front "limbs" of a spider), giving the spider an appearance often described as like wearing boxing gloves. The palpal bulb does not actually produce sperm, being used only to transfer it to the female. Palpal bulbs are only fully developed in adult male spiders and are not completely visible until after the final moult. In the majority of species of spider, the bulbs have complex shapes and are important in identification. Structure The palpal bulb of a mature male spider is borne on the last segment of the pedipalp. This segment usually has touch-sensitive hairs (setae) with nerves leading to them. The bulb itself is entirely without nerves, and hence without sensory organs and muscles, since these depend on nerves for their functioning, although some spiders have one or two muscles external to the bulb and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anelosimus Chonganicus
''Anelosimus'' is a cosmopolitan genus of cobweb spiders (Theridiidae), currently containing 74 species. ''Anelosimus'' is a key group in the study of sociality and its evolution in spiders (Aviles 1997). It contains species spanning the spectrum from solitary to highly social (quasisocial), with eight quasisocial species, far more than any other spider genus. Among these is the South American social species ''Anelosimus eximius'', among the best studied social spider species. The web of a colony of ''A. eximius'' can reach cover entire tree canopies and contain tens of thousands of individuals. Most of the highly social species live in lowland tropical forests, and all occur in the Americas. Other species, particularly those at higher altitudes in northern latitudes in the Americas and all non-American species appear to be solitary or sub-social. Social ''Anelosimus'' species are generally highly inbred and have female-biased sex ratios, with up to 10 females per male. The soci ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anelosimus Membranaceus
''Anelosimus'' is a cosmopolitan genus of cobweb spiders (Theridiidae), currently containing 74 species. ''Anelosimus'' is a key group in the study of sociality and its evolution in spiders (Aviles 1997). It contains species spanning the spectrum from solitary to highly social (quasisocial), with eight quasisocial species, far more than any other spider genus. Among these is the South American social species '' Anelosimus eximius'', among the best studied social spider species. The web of a colony of ''A. eximius'' can reach cover entire tree canopies and contain tens of thousands of individuals. Most of the highly social species live in lowland tropical forests, and all occur in the Americas. Other species, particularly those at higher altitudes in northern latitudes in the Americas and all non-American species appear to be solitary or sub-social. Social ''Anelosimus'' species are generally highly inbred and have female-biased sex ratios, with up to 10 females per male. The so ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
East New Britain Province
East New Britain is a province of Papua New Guinea, consisting of the north-eastern part of the island of New Britain and the Duke of York Islands. The capital of the province is Kokopo, not far from the old capital of Rabaul, which was largely destroyed in a volcanic eruption in 1994. East New Britain covers a total land area of , and the province's population was reported as 220,133 in the 2000 census, rising to 328,369 in the 2011 count. Provincial coastal waters extend over an area of . The province's only land border is with West New Britain Province to the west, and it also shares a maritime border with New Ireland Province to the east. East New Britain has a dual economy: a cash economy operates side by side with the subsistence-farming sector. The main crops produced for export are cocoa and copra. Tourism continues to be an increasingly important sector of the provincial economy. Languages There are sixteen Austronesian languages spoken in the province, of which Kuanua, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Theridiidae
Theridiidae, also known as the tangle-web spiders, cobweb spiders and comb-footed spiders, is a large family of Araneomorphae, araneomorph spiders first described by Carl Jakob Sundevall in 1833. This diverse, globally distributed family includes over 3,000 species in 124 genus, genera, and is the most common arthropod found in human dwellings throughout the world. Theridiid spiders are both Entelegynae, entelegyne, meaning that the females have a genital plate, and Cribellum, ecribellate, meaning that they spin sticky capture silk instead of woolly silk. They have a comb of serrated bristles (setae) on the Arthropod leg, tarsus of the fourth leg. The family includes some model organisms for research, including the List of medically significant spider bites, medically important Latrodectus, widow spiders. They are important to studies characterizing their venom and its clinical manifestation, but widow spiders are also used in research on spider silk and sexual biology, including ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spiders Of Oceania
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 se ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
