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The resulting thinning of the forest canopy leads to the drying of the moss mats that are essential for the spider's survival, as it requires climates of high and constant humidity. [3] These spiders have survived in temperatures that range between -17.8 °C or 0 °F and 19.8 °C or 67.6 °F within mountainous regions of the Southern Appalachians.
Pandercetes is a genus of huntsman spiders that was first described by Ludwig Carl Christian Koch in his 1875 treatise on Australian spiders. [2] They are mainly distributed in tropical Asia and Australia, and are known for their cryptic coloration that matches local moss and lichen. Their legs have lateral hairs, giving them a feathery ...
Paintings of Araneus angulatus from Svenska Spindlar of 1757, the first major work on spider taxonomy. Spider taxonomy is the part of taxonomy that is concerned with the science of naming, defining and classifying all spiders, members of the Araneae order of the arthropod class Arachnida, which has more than 48,500 described species. [1]
Many of these spiders are well adapted to killing other large arthropods and will also sometimes kill small mammals, birds, and reptiles. Despite their fearsome appearance and reputation, most mygalomorph spiders are not harmful to humans, with the exception of the Australian funnel-web spiders, especially those of the genus Atrax. [citation ...
Microhexura is a genus of tiny North American spiders that was first described by C. R. Crosby & S. C. Bishop in 1925. [ 1 ] [ 2 ] It is the only genus in the family Microhexuridae . [ 3 ] As of July 2020 [update] , it contained only two species, both found in the United States : M. idahoana and M. montivaga . [ 1 ]
The eye arrangement of spiders in the genus Latrodectus. Female widow spiders are typically dark brown or a shiny black in colour when they are full grown, usually exhibiting a red or orange hourglass on the ventral surface (underside) of the abdomen; some may have a pair of red spots or have no marking at all.
Nemesiidae is a family of mygalomorph [1] spiders first described by Eugène Simon in 1889, [2] and raised to family status in 1985. Before becoming its own family, it was considered part of "Dipluridae". [3] The family is sometimes referred to as wishbone spiders due to the shape of their burrows. [4]
Myrmekiaphila is a genus of North American mygalomorph trapdoor spiders in the family Euctenizidae, and was first described by G. F. Atkinson in 1886. [2] All described species are endemic to the southeastern United States. Originally placed with the Ctenizidae, it was moved to the wafer trapdoor spiders in 1985, [3] then to the Euctenizidae in ...