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Latrodectus mactans.
I'm not entirely sure of the true population of Black Widow Spiders however, all of the research I have done says that Widow spiders in general are all doing quite well. The term "Widow" spider refers to around 31 separate species, only three of which are located throughout the United States. The Southern Black Widow, the Northern Black Widow, and finally the Western Black Widow. I don't know about the Southern and Northern Widows, but the Western Black Widow is supposedly incredibly over populated. Many people "kill on sight". Going around just the area I live in I have come across more than 100 Black Widows, approximately a city block in area. I can only speculate that the Black Widow numbers in the trillions, (1,000,000,000,000+). If you are bitten by a Black Widow Spider, or suspect that you have been bitten by one, seek IMMEDIATE medical treatment. When seeking medical help, if at all possible bring the spider (or what is left of it), with you. This is of great benefit to the doctor and staff that are trying to help you. It is needed to help positively identify which spider it was that had injected the venom (different treatments are used for different bites). Symptoms can and do include: itching and discoloration (redness), swelling at injection site, and almost always severe muscle spasms, usually located heaviest in the legs or abdomen. The pain of the muscle spasms is said to be very similar to that of appendicitis or even that of child birth.
"Black Widow" is the common name of some Spiders in the genus Latrodectus. They are easily identified by the red hourglass marking on their abdomens. The black widows are highly venomous, and can be fatal to humans.
Yes they do because I live in California and my friend got bit bye one:)
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Latrodectus mactans was created in 1775.
lATRODECTUS MACTANS means Black widow
Latrodectus mactans
Latrodectus mactans.
Latrodectus mactans black widow spider
Latrodectus mactans for southern black widow/ Latrodectus variolus for northern black widow, and Latrodectus hesperus for western black widows
Brown Recluse - Loxosceles reclusaNorthern Black Widow - Latrodectus variolusSouthern Black Widow - Latrodectus mactans
Superdomain BiotaDomain EukaryotaKingdom AnimaliaSubkingdom BilateriaBranch ProtostomiaInfrakingdom EcdysozoaSuperphylum PanarthropodaPhylum ArthropodaSubphylum ArachnomorphaInfraphylum CheliceriformesSuperclass ChelicerataEpiclass EuchelicerataClass ArachnidaSubclass MicruraInfraclass MegoperculataOrder AraneaeSuborder OpisthothelaeInfraorder AraneomorphaeSuperfamily AraneoideaFamily TheridiidaeSubfamily LatrodectinaeGenus LatrodectusSpecies Latrodectus apicalis (Galapagos black widow spider).Species Latrodectus hesperus (Western black widow spider).Species Latrodectus variolus (Northern black widow spider).Species Latrodectus mactans(4) Subspecies Latrodectus mactans mactans(Southern black widow spider, black widow spider).(5) Subspecies Latrodectus mactans tredecimguttatus (European black widow spider, Mediterranean black widow spider).Subspecies Latrodectus mactans tredecimguttatus is sometimes considered as a different species: Latrodectus tredecimguttatus.
There are multiple species called widow spiders in the family "Latrodectus." The most common species in the US is the Latrodectus Mactans.
'The' black widow Latrodectus mactans lives in North America; Mexico and the United States. The species Latrodectus tredecimguttatus does live in Spain.
Yes black widow spiders migrate to various different places. The scientific name of the black widow spider is Latrodectus mactans.