While rescuing other critters from the pool, I noticed this much more interesting bug crawling nearby. First time I've ever seen this fellow and not quite sure what it is... I'm intuitively leaning towards Rhyparochromidae, but I could definitely use some help on this one. (I have a few more pics, if needed to pin down an ID.) Surrounding habitat is mixed oak and chaparral.

Sorta' looks similar to this example of Emblethis vicarius, but I'm not absolutely certain if that species is found in CA... Also, I measured my specimen at about 5 mm. It could have been slightly larger, but the 6-7 mm listed on the Info page seems a bit too large to be a match. (Then again, Tom Murray has a specimen that he lists at ~4 mm, so who knows?)