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Female widow spiders are typically dark brown or a shiny black in colour when they are full grown, usually exhibiting a red or orange hourglass on the ventral surface (underside) of the abdomen; some may have a pair of red spots or have no marking at all.
Latrodectus, conhecido pelo nome comum de aranhas-pretas ou viúvas-negras, é um género de aranhas pertencente à família Theridiidae, que inclui 32 espécies confirmadas. O nome comum viúva negra deriva da maioria das espécies deste género praticar o canibalismo sexual, sendo que a fêmea devora o macho após a cópula. [ 1] Latrodectismo.
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.
The Black Widow spider (Latrodectus spp.) is a spider notorious for its neurotoxic venom (a toxin that acts specifically on nerve cells). The Black Widow Spider is a large widow spider found throughout the world and commonly associated with urban habitats or agricultural areas.
23 de jun. de 2024 · Latrodectus mactans is the most common species of black widow in North America. The female is shiny black and usually has a reddish to yellow hourglass design on the underside of the spherical abdomen.
- The Editors of Encyclopaedia Britannica
Latrodectus tredecimguttatus, also known as the Mediterranean black widow or the European black widow, is a species in the genus Latrodectus of the widow spiders. It is commonly found throughout the Mediterranean region, ranging from southern Iberia to southwest and central Asia, hence the name.
14 de mai. de 2021 · Latrodectus. Type: Invertebrates. Diet: Carnivore. Average Life Span In The Wild: 1 to 3 years. Size: 1.5 inches long; diameter of 0.25 inches. Weight: 0.035 ounces. Size relative to a paper...
