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These spiders are solid and strong-looking with reddish-brown to black bodies. The males have distinctive long red or red-orange legs from the femora downwards. The females have legs the same color as the body. Females are known to reach a body length of about 25 mm, or just under an inch, including the chelicerae. Males are smaller with a body ...
A sample of eight males were slightly smaller, with a total body length in the range 44–49 mm (1.7–1.9 in). Although males have slightly shorter bodies, they have longer legs. The fourth leg is the longest, measuring 70 mm (2.8 in) in the type male and 66 mm (2.6 in) in a female.
Spiders' legs are made up of seven segments. Starting from the body end, these are the coxa, trochanter, femur, patella, tibia, metatarsus and tarsus. The tip of the tarsus bears claws, which vary in number and size. Spiders that spin webs typically have three claws, the middle one being small; hunting spiders typically have only two claws.
With over 1,300 species living in every ocean, these marine arthropods can have a leg span ranging from .04 inches to nearly three feet long. The video above was filmed by ocean explorers
Pholcus phalangioides, commonly known as the cosmopolitan cellar spider, long-bodied cellar spider, or one of various types called a daddy long-legs spider, is a spider of the family Pholcidae. It was first described in 1775 by the Swiss entomologist Johann Kaspar Füssli (his surname is also spelt Fuesslin) as Aranea phalangoides .
In some cases the spider vibrates the web of other spiders, mimicking the struggle of trapped prey to lure the host closer. Pholcids prey on Tegenaria funnel weaver spiders, and are known to attack and eat redback spiders, huntsman spiders and house spiders. [10] [11] A cellar spider which has captured a house spider, in a domestic setting.
The red widow, L. bishopi, has a red-orange cephalothorax, its abdomen is black with yellow rings outlining the rows of red spots and its legs are vermillion red. On its underside, it does not have the familiar hourglass marking and instead usually has one or two small red marks. [3] Females are almost double the size of the male.
Phidippus johnsoni, the red-backed jumping spider or Johnson jumping spider, is one of the largest and most commonly encountered jumping spiders of western North America. It is not to be confused with the unrelated and highly venomous redback spider ( Latrodectus hasselti ).