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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.
Latrodectism (/ l æ t r ə ˈ d ɛ k t ɪ z əm /) is the illness caused by the bite of Latrodectus spiders (the black widow spider and related species). Pain, muscle rigidity, vomiting, and sweating are the symptoms of latrodectism.
These small spiders have an unusually potent venom containing the neurotoxin latrotoxin, which causes the condition latrodectism, both named after the genus. Female widow spiders have unusually large venom glands, and their bite can be particularly harmful to large vertebrates, including humans.
Fleas, spiders, termites, flies, centipedes, ants, bedbugs, cockroaches — these icky intruders won't give up. But keeping them away doesn't require expensive chemical pesticides.
Bites from katipō spiders produce a syndrome known as latrodectism. [18] The venoms of all Latrodectus spiders are thought to contain similar components with the neurotoxin α-latrotoxin being the main agent responsible. [28] [29] Most bites are caused by female spiders; the male katipō was considered too small to cause systemic envenoming in ...
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.