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Phidippus californicus is a species of jumping spider. It is found in the southwestern United States (California, Arizona, New Mexico, Nevada, Texas, Utah) and northern Mexico (Baja California peninsula, and Sonora).
Latrodectus is a broadly distributed genus of spiders with several species that are commonly known as the true widows.This group is composed of those often loosely called black widow spiders, brown widow spiders, and similar spiders.
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.
Argiope aurantia is a species of spider, commonly known as the yellow garden spider, [2] [3] black and yellow garden spider, [4] golden garden spider, [5] writing spider, zigzag spider, zipper spider, black and yellow argiope, corn spider, Steeler spider, or McKinley spider. [6] The species was first described by Hippolyte Lucas in 1833.
Latrodectus hesperus, the western black widow spider or western widow, is a venomous spider species found in western regions of North America. The female's body is 14–16 mm (1/2 in) in length and is black, often with an hourglass-shaped red mark on the lower abdomen. This "hourglass" mark can be red, yellow, and on rare occasions, white.
Black house spider in its web. The web of B. insignis is a messy-looking construct of irregular sail-like shapes. There is a funnel-shaped, silken retreat, usually in the middle or corner of the web, where the spider spends most of its time waiting for prey. The female spider never leaves the web unless forced to.
Amaurobius ferox, sometimes known as the black lace-weaver, is a common nocturnal spider belonging to the family Amaurobiidae and genus Amaurobius. Its genus includes three subsocial species, A. fenestralis, A. similis and A. ferox , all three of which have highly developed subsocial organizations.
A. robustus, a large black spider, is found within a radius of about 100 km from Sydney. Its venom contains a compound known as δ-atracotoxin which is highly toxic to primates. Approximately 10% of bites lead to serious symptoms for a total of 3–4 severe envenomations annually. [10] [11] [12]