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Latrodectus geometricus, commonly known as the brown widow, [2] [3] brown button spider, grey widow, brown black widow, [3] house button spider or geometric button spider, is one of the widow spiders in the genus Latrodectus. As such, it is a 'cousin' to the more infamous Latrodectus mactans (black widow).
The spider gets its name from the existence of three distinctive white stripes on its back, more noticeable on the male. The spider is small, with a dark brown carapace that is between 2 and 2.3 mm (0.079 and 0.091 in) long and a lighter sandy or yellowish-white abdomen that is between 2.4 and 2.6 mm (0.094 and 0.102 in) long.
Phidippus audax are commonly referred to as "bold jumping spiders" or "bold jumpers". [8] The species name, audax, is a Latin adjective meaning "audacious" or "bold". [8] This name was first used to describe the species by French arachnologist Nicholas Marcellus Hentz, who described the spider as being, "very bold, often jumping on the hand which threatens it". [9]
Brown recluse. What they look like: The brown recluse is a brown spider with a distinct “violin-shaped marking” on the top of its head and down its back, Potzler says. Also, brown recluse ...
There are dark rings around the spider's eyes and a large white patch that narrows into a white stripe that finishes towards the back of the thorax. The underside of the cephalothorax, or sternum, is yellow-ish-brown. The spider's clypeus is dark brown, as are the chelicerae, and have a scattering of black hairs and bristles. [14]
The spider is small, with a carapace measuring between 1.3 and 1.4 mm (0.05 and 0.06 in) long and an abdomen that is between 1.2 and 1.6 mm (0.05 and 0.06 in) in length. The female has a larger abdomen than the male, but otherwise they are similarly sized. The carapace is brown with a white stripe down the middle, the male also having white spots.
Barn spiders are predominantly yellow and brown in coloration with striped legs. Their undersides are typically black with white marks inside, although color ranges can be quite variable. They are about three-quarters of an inch (20 mm) long but can grow up to and above an inch (25 mm) long with large, round abdomens. [2]
The spiders are about nine millimetres long, the male being slightly smaller than the female. The male has a blackish longitudinal dorsal stripe with a brownish-white stripe on either side of the abdomen. The carapace and chelicerae are also black and white and the legs have transverse bandings of the same colours. The female is generally paler ...