Cellar spider bite4/12/2023 They are brown with white or black speckles on their bulbous abdomens. These creatures build wispy cobwebs like the typical webs you see in haunted houses around Halloween.Īmerican house spiders can be found in windows, corners, and other undisturbed areas. Scientific Name: P arasteatoda tepidariorumĪmerican house spiders are commonly found in homes throughout Oregon. Common House Spider Common house spider in artificial plant | image by Fyn Kynd via Flickr | CC BY 2.0 You may also like: 10 Species of Turtles in Georgia (With Pictures) 6. The false black widow also lacks the tell-tale red hourglass on the underside of its abdomen, and its abdomen is also more oval-shaped than the true black widow. Instead of being entirely black, the false widow has light yellow or grayish markings. This species, commonly found in homes across Oregon, is around the same size as a true black widow and is primarily black. False Black Widow Spider False black widow spider on the ground | image by Nikk via Flickr | CC BY 2.0Īs the name suggests, the false black widow spider looks a lot like the true black widow spider. These spiders do not build multiple webs but instead spend their entire lives on one erratically built web, which can usually be found around tiny cracks and other hiding places in a home. The gray house spider can grow slightly over half an inch long and has relatively short legs. This species ranges from dark gray to brown but gets its name from the light gray hairs on this spider’s abdomen and head. Gray house spiders prefer living inside your home, but this shy spider is rarely seen by humans. Gray House Spider Gray house spider in house corner | image by Geoff Shuetrim via Flickr | CC BY 2.0 This species looks similar to the hobo spider, and it may be difficult to tell them apart, but giant house spiders are bigger than hobo spiders. With a leg span of up to three inches, these arachnids can look intimidating but harmless to humans. The giant house spider is the largest spider in Oregon and prefers to reside where humans live. Giant House Spider Giant house spider on the wall | image by Tom Trelvik via Flickr | CC BY-SA 2.0 A hobo spider bite is unpleasant but doesn’t pose any real threat to humans unless an allergy is present. The hobo spider prefers to live in gardens, fields, and bushes. The females are slightly larger than the males, and they are both brownish red in color with a herringbone pattern on their abdomens. The male and female hobo spiders look very similar, so they are not sexually dimorphic. Hobo Spider Hobo spider | image by Géry Parent via Flickr | CC BY-ND 2.0 Western black widows are most common in Eastern Oregon but have been seen in the Southwestern and Northwestern regions of Oregon as well. The females can grow up to half an inch in length, and the males only grow to be about one-third that size. The males are brown or gray and have a small red dot on their abdomen instead of an hourglass-shaped mark. They are identified by a red hourglass-shaped mark on their underbelly. The venomous female has a glossy black body with a large, round abdomen. The Western black widow is native to the western part of the United States and is the only venomous spider in Oregon whose bite is considered to be medically significant. Western Black Widow Male Western Black Widow | image by Alan Moore via Flickr | CC BY-ND 2.0 There are 500 spider species living in Oregon, and in this article we highlight some of the most common arachnids in the state and tell you which ones are actually dangerous. Many people think they are all dangerous, but the truth is most spiders are harmless, and they actually help reduce the insect population. Spiders are often feared by humans and killed unnecessarily.
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