Location: Sonoma County, California
February 9, 2014 5:32 pm
My wife found this little guy crawling around in the laundry room, waving the scorpion-like appendages. I took photos using a macro lens, which decided to focus on the ruler under the plastic measuring cup, so apologies for not having it exactly in focus. Neither of us has ever seen this particular insect before. At first she thought it may be a tick, but on further examination we are both stumped.
This is a harmless, predatory (beneficial) Pseudoscorpion, and you are correct that it is an arachnid. Pseudoscorpions are harmless, because unlike their namesakes, they do not have venom.