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“The southern black widow, Latrodectus mactans, lives in the southeastern U.S. west to Texas, south into eastern Mexico, and tapers off about halfway north to Canada,” Crawford says. The ...
“Female black widow spiders are known to be aggressive and bite in defense, especially when guarding eggs. In rare cases, black widow spider bites can be fatal.” Brown recluse spiders
A black widow bite often causes pain right away, according to the National Capital Poison Center. Around the bite, there will be “tiny puncture wounds” along with some local swelling.
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.
Habitat destruction (also termed habitat loss and habitat reduction) occurs when a natural habitat is no longer able to support its native species. The organisms once living there have either moved elsewhere, or are dead, leading to a decrease in biodiversity and species numbers .
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.
Latrodectus indistinctus is a species of spider in the family Theridiidae, found in Namibia and South Africa. [1] It is one of six species of Latrodectus found in southern Africa, four of which, including L. indistinctus, are known as black button or black widow spiders.
The venom of a black widow spider, however, is a neurotoxin, the CDC says. Therefore, black widow venom causes widespread pain across an area of the body and symptoms that aren't limited to the ...