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Bites from Latrodectus occur usually because of accidental contact with the spiders. The species are not aggressive to humans naturally, but may bite when trapped. As such, bite incidents may be described as accidents. Reports of epidemics [23] were associated with agricultural areas in Europe in the last two centuries. However the European ...
Latrodectus mactans, known as southern black widow or simply black widow, and the shoe-button spider, [citation needed] is a venomous species of spider in the genus Latrodectus. The females are well known for their distinctive black and red coloring and for the fact that they will occasionally eat their mates after reproduction.
A latrotoxin is a high-molecular mass neurotoxin found in the venom of spiders of the genus Latrodectus (widow spiders) as well as at least one species of another genus in the same family, Steatoda nobilis. [1] Latrotoxins are the main active components of the venom and are responsible for the symptoms of latrodectism.
Treatment of spider bites includes washing the wound with soap and water and ice to reduce inflammation. [35] Analgesics and antihistamines may be used; however, antibiotics are not recommended unless there is also a bacterial infection present. [35] Black widow post-envenomation treatment seeks to control resulting pain and nausea.
Latrodectus hasselti, the redback spider. The widow spiders (genus Latrodectus), such as the black widow, redback spider, and katipÅ are spiders that carry a neurotoxic venom [18] which can cause a set of symptoms known as Latrodectism. Widow spiders are large, shiny house spiders with relatively spindly legs and deep, globular abdomens.
The genus Latrodectus was erected by Charles Athanase Walckenaer in 1805, for the species Latrodectus tredecimguttatus and Latrodectus mactans. [ 1 ] [ 25 ] Arachnologist Herbert Walter Levi revised the genus in 1959, studying the female sexual organs and noting their similarity across described species.
While humans wouldn’t be very happy to find that organisms were growing on their skin, particularly fungi, algae, and insects, it works out pretty well for sloths. Sloths may be hosting entire ...
Latrodectus mactans hasselti Chrysanthus, 1975 The redback spider ( Latrodectus hasselti ), also known as the Australian black widow , [ 2 ] [ 3 ] [ 4 ] is a species of highly venomous spider believed to originate in Australia but now, Southeast Asia and New Zealand , it has also been found in packing crates in the United States with colonies ...