What kind of spider is this?
Location: Just south of Roseburg, OR
November 28, 2011 10:35 am
I was given an inflatable kayak. When I turned it over, this spider ran out. It was very aggressive, trying to chase me with its front legs lifted. I live in Douglas County, Oregon, and I have NEVER seen a spider like this before. There was no webbing or nest in the kayak. It was a little bigger than a half dollar.
Signature: Heather Goin
This appears to us to be a Folding Door Spider, Antrodiaetus pacificus, which we identified on BugGuide. They are also known as Trapdoor Spiders. Females rarely leave their burrows, and they tend to have a longer lifespan. Males tend to leave their burrows at the onset of the autumn rains, and they wander about in search of a mate. Your individual is a male. Though his defense posture is threatening, Trapdoor Spiders are not considered a harmful species to humans, though it is possible they might bite. If that happened, the bite generally causes a brief local reaction.
Wow! Thanks for your speedy reply! Glad to know he isn’t harmful! 🙂