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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 elsewhere outside Australia. [5]
Latrodectus hasselti, the redback spider. The widow spiders (genus Latrodectus), such as the black widow, redback spider, and katipō 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.
[28] [29] Most bites are caused by female spiders; the male katipō was considered too small to cause systemic envenoming in humans. [10] However, bites from male redback spiders have been reported, suggesting male Latrodectus spiders can cause envenoming in humans. Bites by male spiders are much rarer than those by females, perhaps due to ...
Spider bite pictures. Months after a brown recluse spider bite, the patient still shows scarring. Brown recluse spider bites can lead to skin cell death and crater-like scarring.
Here are some other things to know about spider bites. Bite symptoms. If you get bitten by a spider, the spider typically won’t pose a huge threat. Instead, it’ll just look like a little bug bite.
“In general, spiders will bite only if they can’t get away from you, or are protecting their babies and don’t want to leave the babies behind, and/or they are being crushed or otherwise hurt ...
Redback spider. Australia has a number of highly venomous spiders, including the Sydney funnel-web spider, [1] its relatives in the family Hexathelidae, and the redback spider, whose bites can be extremely painful and have historically been linked with deaths in medical records. [2]
A venomous spider bite (like this brown recluse bite) can cause a red or purplish rash radiating from the site of the bite. There are only a few species of spiders in the U.S. that can bite humans.