Although the Black Widow acquired its common name from the female’s tendency to eat the male after mating (a trait common to many spiders) rather than from the potency of its poison, it is the most seriously poisonous spider in the United States and perhaps the world. Coupled with the fact that spider fangs are extremely sharp, the possibility of accidental envenomation is too great to justify the risk of handling an apparently dead spider.

Although different experts embrace different opinions as to the potency of male versus female venom, I find it best to consider male and female specimens equally dangerous. No area is safe from the possibility of infiltration. Some of the first signs are a general weakness with a mild paralysis of the muscles in the region of the bite. As these spiders live in our buildings safe from natural enemies, their numbers will increase more rapidly than they would if the female did not protect the young and did raise them outdoors amid their natural enemies. Citrus Drive Riverside, CA 92521, tel: (951) 827-5714 fax: (951) 827-3086 email: [email protected], How to Identify and Misidentify a Brown Recluse Spider, Myth of the Brown Recluse Fact, Fear, and Loathing, Causes of Necrotic Wounds other than BRS Bites, College of Natural & Agricultural Sciences, © 2020 Regents of the University of California.

L. unicolor frequents the Southwest from California to Texas and has been involved in several recorded instances with serious consequences. The work of Muller (1993), which reports 15 verified brown widow bites in Africa, shows that they pale in comparison to typical Latrodectus bites. To begin with, all spiders are poisonous. The best way to clean storage areas, attics, closets, and such of potentially harmful interlopers is to vacuum the area with an extension tube fitted with an attachment big enough to suck up a spider. How could such a small, almost insignificant animal lay low a strapping 6′ 1″ 195-pound man in the prime of life? His too is a milder venom that can still cause considerable discomfort. Only two symptoms of brown widow envenomation were reported in the majority of bite victims: 1) pain while being bitten and 2) a mark where the bite occurred. There may be a burning sensation. The irregular web spun by these spiders tends to be of a sketchier design than the symmetrical orb. We have two main types of venomous spiders, four types of widow spiders and three species of recluse spiders. Not much more. They are also noted for the female’s generous nature. The Tarantula is a large, hairy fellow familiar to all. Riverside, CA 92521, 165 Entomology Building They thrive in human habitations, although they may also be found in the wild under rocks and fallen logs. Woodpiles, basements, and attics are other favored spots for web-spinning. Your breathing may become labored, and your speech could be affected. South African Med J. And the danger may be enhanced if you don’t realize that you’ve been bitten.

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