Biology Stack Exchange is a question and answer site for biology researchers, academics, and students. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

Last night I came across this spider outside my house (costal Southern California). It was bigger than any I'd seen before, about 2.5 or maybe 3 inch legspan, maybe just under an inch for the body length. It is a brown-gray color, the cephalothorax has two dark brown stripes, and some mean looking fangs. Can anyone identify it?

Head on view back view back view with flash

share|improve this question

Looking at this reference "Frequently synanthropic spiders of Southern California", I would have to say that it is possibly a grass spider. (Please someone correct me if I am wrong).

Beautiful looking specimen!

share|improve this answer
Ah, it does look like a grass spider. Or possibly a wolf spider? Any chance of narrowing male/female or which particular species? – A L Jul 7 '13 at 18:39
I've found some species of wolf spiders and grass spiders to look and behave almost identically, though typically wolf spiders are larger. – user1167442 May 16 '15 at 3:19

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.