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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.
The blue mud dauber species, Chalybion californicum, is a wasp that, in western North America, is the primary predator of black widow spiders. [ 21 ] The ultimate tensile strength and other physical properties of Latrodectus hesperus (western black widow) silk are similar to the properties of silk from orb-weaving spiders that had been tested ...
And they do this efficiently, without chemicals and for free. As to their dangerousness, despite the estimated 2,200 Black Widow bites annually in the nation, only one known death has occurred ...
Latrodectus geometricus, commonly known as the brown widow, [2] [3] brown button spider, grey widow, brown black widow, [3] house button spider or geometric button spider, is one of the widow spiders in the genus Latrodectus. As such, it is a 'cousin' to the more infamous Latrodectus mactans (black widow).
This species is most famous for its predation of black widow spiders. [2] Adults feed on the nectar of flowers, which powers their flight. They pollinate some common wildflowers, including Berberis vulgaris, Daucus carota, and Zizia aurea. Larvae are fed spiders, often Latrodectus mactans. They prefer to hunt prey on the ground or under rocks. [4]
Aggson said the spider he most commonly sees is the southern black widow. They’re “blackish with that red hourglass mark on the underside of the abdomen. The male looks totally different.
The katipō spider is related to the Australian redback and other widow spiders. This spider can be found in New Zealand in burrows or trees. The name means "night-stinger" in native Māori language. This species is listed as endangered due to habitat loss, as well as non-native spider introduction. It is estimated that only a few thousand of ...
Latrodectus revivensis, [1] [2] also known as the desert widow, is a species of venomous spider belonging to the Latrodectus genus and located in the Negev desert and the Arava valley (Arabah). [3] [4] [5] As with most members of its genus, it contains venom that can cause latrodectism [6] through bites in various organisms.