There are not many species of spiders in California that cause lethal bites. Among them we can name the black widow and the brown recluse spider.
widow has a very toxic poison that affects the nervous system. Fortunately, the amount of poison this spider injects is small. Besides, it is a very elusive spider and, in general, it does not like living near human beings. The bite of the black widow can be treated and it is rarely mortal.
The lonely brown recluse spider or "violin spider" (recluse loxosceles) is rarely found in California, yet it has been found in the south of this State. Nevertheless, a close relative, the Loxosceles deserta, lives at the base of mountains in the Sonora and Mojave deserts. It is a very elusive species that avoids contact with human beings, although sometimes we can find it in our homes,
especially in dry and isolated places such us attics, closets, garages and places used to store objects during long periods. Other species is the Loxosceles laeta, a native of South America, which was first found in Los Angeles in 1969. However, its arrival is unknown. The bite of the brown recluse spider causes many types of reactions.
|The bites of the black widow and the brown recluse spiders are generally painless, what lead us to ignore them. In a few hours, the bite starts to hurt and the skin swells. The victim can also show nauseas and slight general pain. Just in a few cases the bite of a brown recluse spider can get infected and cause temperature or destroy the red corpuscles and, eventually, a surgery in the
affected area must be needed. In the most serious cases caused by the bite of a black widow, some people can suffer from breathing problems and perspire. However, both bites have slight consequences and the symptoms decrease on their own in a few days.|
As explained in the LOCATION link, it is commonly seen how some species of this spider tend to spread by traveling inside boxes, packaging and furniture.
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