Black Widow
Range:
Tropical and temperate regions worldwide
Habitat:
Various habitats, including forests, woodlands, grasslands, deserts, and urban areas
Conservation Status:
Common
Scientific Name:
Latrodectus sp.
Black Widow Spider Facts
Kingdom:
Five groups that classify all living things...
Black Widow Spider
The Black Widow Spider weighs about 1 gram and is only 2 inches long. But it is the most poisonous spider in North America! Only the adult females carry venom; males and young black widows are harmless.
Black Widow
Related Category: Zoology: Invertebrates
poisonous spider of the genus Latrodectus, found throughout North and South America and common in the SW United States.
Black widow spiders are considered one of the most poisonous spiders in North America. They are also the largest web-spinning spiders.
Black Widow Spider Range
Fast Facts
Type: Bug Diet: Carnivore Average life span in the wild: 1 to 3 years Size: 1.5 in (38 mm) long, 0.25 in (6.4 mm) in diameter Weight: .
The black widow spider is a spider notorious for its neurotoxic venom. It is a large widow spider found throughout the world and commonly associated with urban habitats or agricultural areas.
Black Widows
I explained that although a female black widow may consume her mate, she seldom does so immediately after a copulatory event.
Black widow spiders are common around woodpiles and are frequently encountered when homeowners carry firewood into the house. They may also be found under eaves, in boxes, outdoor toilets, meter boxes and other undisturbed places.
The Black Widow Spider is the only spider in Alberta that is potentially harmful to people. A bite is highly unlikely to be fatal but may be extremely painful and unpleasant. At one time, Black Widow spider bites were more common than they are now.
The Black Widow spider is common throughout the southern United States. Webs can be found in undisturbed, recessed areas including woodpiles, garages, fence rows, debris and abandoned animal burrows.
Natural History ...
Black widow, Stygnobrotula latebricola Böhlke, 1957.
Genus Thalassobathia
Thalassobathia nelsoni Lee, 1974.
Thalassobathia pelagica Cohen, 1963.
The Black Widow is probably the most feared spider in the United States because of its venom. Despite its reputation, the female spider attempts to escape rather than bite, unless defending her egg case. The males do not bite.
A Relative
The Black Widow Spider of the United States is a close relative of the Redback spider.
: Western black widows like most arachnids feed primarily on insects. The diet of L. hesperus includes beetles, cockroaches, and flies.
Juvenile fence lizards are preyed upon by many other animals, including the black widow spider. © Rory Doolin
Adult, Solano County
Some Characteristics Useful In Separating Western Fence Lizards from Common Sagebrush Lizards ...
Cobras, stonefish, black widow spiders and scorpions use neurotoxins. Other venom (hemotoxin) attacks the circulatory system, causing pain, swelling and changes in the blood. Rattlesnakes, vipers and some spiders use hemotoxins.
Lactrodectus tredecimguttatus - Black widow spider
Subphylum Uniramia (Uniramians)
Superclass Insecta ...
Coremiocnemis (Coremiocnemis jeremyhuffi)
Peacock parachute spider (Poecilotheria metallica)
Black widow spider (Latrodectus mactans)
Wolf spider (Pardosa amentata)
Mexican redrump tarantula (Brachypelma vagans) ...
The bites of some spiders and the stings of a few species of scorpions are dangerously poisonous to humans (see Black Widow Spider, Brown Recluse Spider).
 See also: Widow, Spider, Black Widow Spider, Snake, Scorpion
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