Top Results for Medically Significant

The Sydney funnel-web spider Atrax robustus is a large, aggressive spider native to eastern Australia. It’s notable due to its potent venom, which can cause severe symptoms including myolysis and neurological effects. This medically significant species is particularly dangerous to humans and is most...

The Chilean recluse, scientifically known as Loxosceles laeta, is a highly venomous spider belonging to the family Sicariidae. Native to the western regions of South America, it is considered one of the most dangerous recluse species due to the potency of its hemotoxic venom. Bites from this spider...

The Brazilian wandering spider, *Phoneutria fera*, is a large, venomous spider found throughout South America, primarily in Brazil. It’s notable for its potent neurotoxic venom which can cause severe symptoms including paralysis and death if untreated. This species is medically significant due to it...

The black widow spider (Latrodectus mactans) is a venomous arachnid belonging to the Theridiidae family, commonly known as cobweb spiders. Native to North America, females are easily identified by their glossy black bodies and the distinctive red hourglass marking on the underside of their abdomens....

"Hadronyche cerberea," commonly known as the Illawarra funnel-web spider, is a highly venomous mygalomorph spider native to the New South Wales region of Australia. Like other funnel-web species, it constructs deep, silk-lined burrows in cool, humid microhabitats such as rotting logs or crevices. It...

The redback spider (*Latrodectus hasselti*) is a highly venomous arachnid native to Australia and a member of the widow spider family. The female of the species is distinctly marked by a prominent red or orange stripe on the upper side of her black, bulbous abdomen. They typically build irregular, t...

The Gaucho Recluse (Loxosceles gaucho) is a venomous spider species belonging to the genus Loxosceles, commonly known as recluse or fiddle-back spiders. Native to South America, particularly Brazil, this species is closely related to the well-known brown recluse spider (Loxosceles reclusa) found in...

The banana spider (Phoneutria nigriventer) is a large, highly venomous arachnid native to South America, particularly Brazil and Argentina. It belongs to a group often referred to as armed spiders or wandering spiders, as they actively hunt on the forest floor at night rather than building webs. The...

The Western Black Widow, Latrodectus hesperus, is a cobweb spider found across western North America. Adult females are usually dark and may have a red or orange hourglass marking on the underside of the abdomen, while males are much smaller. It builds irregular webs in sheltered locations and posse...

Loxosceles laeta, known as the Chilean recluse spider, is a spider in the family Sicariidae and one of the medically significant recluse spiders of South America. Hercule Nicolet described the species in 1849. It is associated with bites that can cause loxoscelism, including localized tissue damage...

Hadronyche versuta is a species of funnel-web spider found in New South Wales, Australia, especially in the Blue Mountains region. It belongs to the family Atracidae, a group that includes medically important Australian funnel-web spiders, and has a dark, robust body typical of the group. The specie...

The Northern Black Widow is a venomous spider in the family Theridiidae, native to parts of eastern North America. Latrodectus variolus is identified by its dark body, red markings that are often broken or incomplete on the abdomen, and irregular three-dimensional cobweb. It is mainly associated wit...

Hadronyche infensa is a species of funnel-web spider native to eastern Australia, including areas around southeastern Queensland. It belongs to the family Atracidae, whose members are known for their strong venom and medically important bites. The species is associated with moist habitats and is one...

Loxosceles arizonica, commonly called the Arizona recluse, is a species of recluse spider in the family Sicariidae. Gertsch and Mulaik described it in 1940; records place it in Arizona, New Mexico, western Texas, and parts of Mexico. Like other medically significant Loxosceles spiders, its venom can...