Scorpions are found in Oregon, though encounters are infrequent. The species typically found in Oregon are not considered highly dangerous to humans. They can deliver a painful sting, often compared to that of a bee or wasp, but serious medical complications are uncommon for healthy individuals.
Scorpion Species in Oregon
Oregon hosts several native scorpion species, with the Northern Scorpion (Paruroctonus boreus) being one of the most commonly encountered. This species tolerates cooler temperatures, making it the most cold-tolerant scorpion in the region. Northern Scorpions typically measure between 1.37 and 2.16 inches in length and exhibit a tan coloration with distinct dark brown stripes across their backs. They possess large, rounded pincers, which they use to subdue prey.
Another species is the Western Forest Scorpion (Uroctonus mordax). These shy scorpions prefer cooler, moister environments. When disturbed, they often remain motionless, appearing to play dead rather than immediately stinging. Both the Northern and Western Forest Scorpions are not typically aggressive unless provoked.
Where Scorpions are Found
Scorpions in Oregon are predominantly found in the drier, eastern, and central parts of the state, particularly in high desert areas. They thrive in rocky terrain, often seeking shelter under rocks, logs, or moss-covered surfaces. They can also be found in pine forests and lava beds, adapting to various elevations within these regions.
The Western Forest Scorpion, however, extends its range into the western and mountainous parts of Oregon, preferring moist wooded areas. These nocturnal creatures typically remain hidden during daylight hours. While primarily outdoor inhabitants, scorpions can occasionally enter homes, basements, or garages, especially in rural or semi-rural areas.
Managing Scorpion Encounters
A sting from Oregon’s native scorpions is generally comparable to a bee or hornet sting, typically resulting in localized pain, tingling, and numbness. The pain can be intense for the first couple of hours, but it usually subsides within 24 hours. Swelling and redness are often minimal or absent.
For first aid, clean the sting area with soap and water. Apply a cold compress to reduce pain and minor swelling. Over-the-counter pain relievers like acetaminophen can also help manage discomfort. Elevating the stung limb and removing any jewelry near the sting site can also be beneficial.
Medical attention is rarely necessary for stings from Oregon scorpions, but it should be sought if severe symptoms develop, such as muscle twitching, difficulty breathing, drooling, difficulty swallowing, blurred vision, or seizures. Young children and elderly individuals, or those with known severe allergies to insect stings, should be monitored more closely. To minimize encounters, homeowners can seal cracks in foundations and around windows and doors, as scorpions can enter through very small openings. Clearing outdoor debris like woodpiles, rocks, and dense vegetation from around the home also reduces potential hiding spots. Wearing gloves when gardening or handling outdoor materials can provide an added layer of protection.