Overview of Spider Species in the United States
Steatoda borealis, a spider species that belongs to the genus Steatoda is one of the members family of Theridiidae. In United States, they are found east of the Rocky Mountains as well as in Alaska. Many spiders in the genus Steatoda are frequently misidentified as widow spiders and are dubbed “false black widows”. And even […]
Known in the United Kingdom as the Noble False Widow, Steatoda Nobilis is a species of spider in the genus Steatoda. Historically, this spider is native to Spain’s Canary Islands and is thought to have spread to Europe and the British Isles via banana shipments. It gets its name from a passing resemblance to the […]
The Steatoda grossa, commonly called the false black widow spider or cupboard spider can be found throughout the United States. It is from the family of Theridiidae, the same as the black widow spiders. They build similar webs and have a similar body shape and color as black widows. Hence, their common name false widow. […]
The Steatoda triangulosa, commonly called the triangulate cobweb spider is a brown-black spider found throughout the US. It has an iconic triangulate shape on its back. Steatoda triangulosa Description The most distinguishing marks on the Steatoda triangulosa are the two darker zigzag markings that run down the abdomen, which form a set of triangular shapes […]
The Steatoda bipunctata, commonly called rabbit hutch spider is a black spider found throughout the United States. It comes from the same family as the feared black widow spiders and is often confused with them. The bite of a rabbit hutch spider is not dangerous for humans. It is from the same genus as the […]
Parasteatoda tepidariorum, or the common house spider can be found in every US state. The spider is also distributed throughout most parts of the world and is often also referred to as the American house spider. As the name suggests, the Common House Spider can often be found in basements, attics and crawl spaces as […]
As of 2021, there are over 48,000 spider species in the world. Around 3,000 of the species can be found in the United States. Spiders are classified under the order Araneae in the class Arachnida. Other arachnids that are not spiders are for example harvestmen and ticks. Araneae are divided into two suborders: Mesothelae and […]
The missing sector orb weaver, Zygiella x-notata, is a common spider species found throughout Europe and the United States. The original distribution area of this orb weaver spider is in Europe. The spider is most commonly found throughout the United Kingdom an Western Europe. However, over the last decades, the population has spread throughout the […]
Latrodectus mactans, the Southern black widow is a close relative of the Northern black widow and the Western black widow. The female of all three species is mostly black with a distinctive red hourglass pattern on the underside of its abdomen. They can inject a potent venom with their bite with potential severe medical effects. […]
Latrodectus, the black widow spider is one of the most famed and feared spider genera in the world. Hollywood tends to use only one kind of Black Widow in its films. It is always shown as a shiny black spider with a red hourglass on the dorsal side of its abdomen. However, this is not […]
