WebLatrodectism (/ l æ t r ə ˈ d ɛ k t ɪ z əm /) is the illness caused by the bite of Latrodectus spiders (the black widow spider and related species). Pain, muscle rigidity, vomiting, and sweating are the symptoms of latrodectism. There are several spider species all named black widow: southern black widow spider (L. mactans), the European black widow … WebLatrodectus 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, …

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WebLatrodectus mactans is the largest spider of the family Theridiidae. The black widow spider is shiny, coal black in color. The female averages 8-10 mm in length and has long … WebMay 28, 2024 · Widow spiders belong to the genus Latrodectus and are found throughout the world. In the United States, arguably the most famous is the Southern black widow … 5g覆盖地图联通

Western Widow Spider - 5.605 - Extension

WebNov 18, 2024 · The widow spiders, genus Latrodectus, are found worldwide in the warmer regions of most continents. The taxonomy of these spiders is challenging and as few as six to as many as twenty-eight … WebSouthern and northern black widow spiders. Order: Araneae. Family: Theridiidae. Genus and species: Latrodectus mactans (F) and L. variolus Walckenaer. Black widows can be found throughout Arkansas. The … WebThe widow spiders are a group of related spiders in the genus Latrodectus. Several species occur in the United States, but the western widow, Latrodectus hesperus, is the overwhelmingly dominant species … 5g覆盖情况