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Steatoda borealis

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 […]

Steatoda nobilis – Noble False Widow

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 […]

Castianeira Longipalpa – Long-Palped Ant Mimic Sac Spider

Castianeira longipalpa, sometimeys referred to as the long-palped ant mimic sac spider is found along the Eastern United States as well as in the Pacific Northwest. The small black spider with at least four white lines along its abdomen is not medically significant. Castianeira longipalpa is often confused with its close relative, Long-Palped Ant Mimic […]

Platycryptus Undatus – Tan Jumping Spider

The tan jumping spider is a mostly black and gray jumping spider found in the Eastern United States. The can reach a maximum body size of 0.5 in (13 mm) and have a light-colored chevron-pattern on their back. Male individuals have a horizontal orange stripe under their eyes. Description of the tan jumping spider The […]

Frontinella Pyramitela – Bowl and Doily Spider

The bowl and doily spiders, known as Frontinella pyramitela, are a small species of spiders that belong to the family of Linyphiidae. The common name of these spiders comes from its peculiar webs that have a bowl shape with a sheet-web or blanket (doily) beneath it. Like other sheet web weavers, Frotinella pyramitela spiders can […]

Micrathena Sagittata – Arrow-Shaped Orbweaver

The arrow-shaped orb weaver, Micrathena sagittata, is a strange-looking, arrow-shaped spider that is commonly found in gardens of the Eastern United States. The spider’s abdomen is large and yellow with two large red and black spines on its back. Its specific name “sagittata” is Latin for “arrowed” and it refers to the shape of the abdomen. Arrow-Shaped […]

Phidippus Johnsoni – Red-Backed Jumping Spider

The red-backed jumping spider, Phidippus johnsoni, is found throughout the Western United States and Canada. The spider has a black body and the back of its abdomen is bright red. Description of the Red-Backed Jumping Spider The redbacked jumping spider is generally quite easy to identify. It’s body is predominantly black with a brightly red […]

Gray House Spider – Badumna Longinqua

The gray house spider, Badmuna longinqua, is a medium sized black and gray spider originally native to Australia. It has been introduced to New Zealand, South America, Europe, South Africa and the United States. Despite the reputation of Australian spiders, the grey house spider is harmless for humans and larger pets. Due to its secretive […]

Gasteracantha Cancriformis – Spinybacked Orb Weaver

The spinybacked orbweaver is a small harmless spider with six characteristic spines along the back of its abdomen. It can come in a variety of colors. The native range of this species is throughout the Southern United States, Central America and the Caribbean. The spiny backed orb weaver has also been introduced to Hawaii and […]

Steatoda Grossa – False Black Widow Spider

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. […]

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