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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....
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...
Stegodyphus sarasinorum is a species of social spider native to the Indian subcontinent, particularly found in India and Sri Lanka. Unlike the majority of solitary spider species, it lives in large communal colonies that construct extensive shared web systems spanning trees and bushes. The colony me...
The Triangulate Cobweb Spider is a globally distributed species named for the distinct, dark triangular markings on its pale yellow abdomen, commonly found inside houses.
The American House Spider is a globally distributed cobweb spider originally from the Americas, recognizable by the messy, irregular webs it constructs inside human dwellings.
The Western Black Widow is a highly venomous spider native to western North America, officially classified by arachnologists Ralph V. Chamberlin and Wilton Ivie in 1935.
The Cellar Cave Spider is a widespread European arachnid known for inhabiting dark, moist environments like animal burrows, basements, and caves across the continent.
Enoplognatha ovata is a small European and North American cobweb spider exhibiting multiple color forms, ranging from plain white to forms with bold red stripes on the abdomen.
The Katipo Spider is an endangered, venomous arachnid endemic to New Zealand, first described by Louis Powell in 1870, recognized by its distinctive red stripe.
Endemic to the sandpine scrub habitats of southern Florida, the Red Widow Spider is a distinctly marked arachnid first described by B. J. Kaston in 1938.
The rabbit hutch spider (Steatoda bipunctata) is a common European arachnid frequently found near human settlements and agricultural structures like small animal enclosures.
Native to the eastern United States, the Northern Black Widow is a venomous spider first described by Charles Athanase Walckenaer in 1837 with broken red markings.
Steatoda paykulliana, the marbled false widow, is a cobweb spider native to the Mediterranean region that is often mistaken for the more dangerous black widow.
Nesticus cellulanus is a European nesticid spider of moist, dim habitats such as caves and cellars, closely allied to the Theridiidae.
The false black widow (Steatoda grossa) is a cosmopolitan arachnid frequently mistaken for the venomous black widow, though it lacks the distinctive red hourglass marking.
First described by C. L. Koch in 1841, the Brown Widow Spider is a globally distributed arachnid whose neurotoxic bite is less severe than the black widow's.
The common house spider (Parasteatoda tepidariorum) is a globally distributed species renowned for constructing the messy, tangled cobwebs frequently found inside human homes.
Originating in the Macaronesian islands, the noble false widow (Steatoda nobilis) is a notable invasive species in Europe known for its medically significant spider bites.
Theridion impressum is a small European cobweb spider found on low vegetation, known for maternal care in which females guard their egg sac and spiderlings.
