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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).
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]
The Brown Recluse, also known as the 'fiddleback' spider, can be identified by the violin-shaped marks on its body and six eyes, as opposed to the more common eight.
Adult female marbled orbweavers have a body length of up to 14 mm or more, with a very large oval, sub-spherical abdomen. Adult males are smaller, with a body length of up to 7 mm. Two main color forms are found. A. marmoreus var. marmoreus has an orange abdomen with brown to black marbling. It usually has a distinct folium with dark edging.
“The majority of the spiders cause us no harm and are predators of pests,” says entomologist Roberto M. Pereira, Ph.D., an insect research scientist with the University of Florida. Translation ...
Brown recluse spiders, or Loxosceles reclusas, are roughly the size of a quarter with their legs extended, and experts say the shy arachnid usually prefers to hide in dry, dark places, where there ...
They may exhibit white or orange markings on the opisthosoma similar to the white markings seen in males, but the rest of the body is largely covered with scales which may be brown, orange, tan, gray, or a combination of those colors. The chelicerae are iridescent green or red-violet in color, but lack the tubercles found on the chelicerae of ...
The name "barn spider" is also commonly used for a different spider, Araneus cavaticus. Generally nocturnal, females may become diurnal in the fall. [3] Females are about 9.5–19 millimeters (0.37–0.75 in) long, while males are somewhat smaller. The upper surface of the abdomen is brown and hairy.