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Black widows are not especially aggressive spiders, and they rarely bite humans unless startled or otherwise threatened. [33] Contrary to popular belief, most people who are bitten suffer no serious damage, let alone death. Fatal bites were reported in the early 20th century mostly with Latrodectus tredecimguttatus, the Mediterranean black ...
Black widows, once L.A.’s ruling widow, have been pushed out of the urban core by the brown widow over the last 15 years or so, according to Gonzalez. Native black widows are still doing well on ...
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.
They resemble a sandspur, having pointed projections all over, [4] and they are sometimes described as "tufted", "fluffy", [4] or "spiky" in appearance. Eggs hatch in approximately 20 days. [ 5 ] Female brown widows lay about 120–150 eggs per sac and can make 20 egg sacs over a lifetime.
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 hesperus, the western black widow spider or western widow, is a venomous spider species found in western regions of North America. The female's body is 14–16 mm (1/2 in) in length and is black, often with an hourglass-shaped red mark on the lower abdomen. This "hourglass" mark can be red, yellow, and on rare occasions, white.
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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.