Black widow spiders, scientific name Latrodectus mactans, are among the most venomous of all arachnids. They are found in North America, and their bite can be fatal in some cases. If you found a ...

Although most spider bites are not substantially venomous to humans, the brown recluse spider, Loxosceles reclusa, can cause significant cutaneous injury. These spiders are common inhabitants of homes ...