Black Widow Spider. This group is composed of those often loosely called black widow spider. ↑ offerman s.r., daubert g.p., clark r.f.
The female northern black widow spider, latrodectus variolus, usually has a row of red spots down the middle of the back, and sometimes also some diagonal whitish marks on the sides. Black widow spiders favor dark, secluded areas such as crevices and woodpiles. A female black widow will measure approximately 1.5 inches black widows have plump, rounded abdomens that are directly attached to the spider's thorax, behind the. Black widow spiders are not usually deadly, especially to adults, because they inject only a small amount of venom.
Black widow spiders (latrodectus spp.) are some of the most recognizable and feared.
There are several differences in appearance between the male and the female black widow spider. Incredible black widow spider facts! The black widow spider then carries its prey back to its retreat before feeding. The black widow spider is probably the most venomous spider in north america.
