I was going through some of my old image files and came across these pics of what looks to me like a member of the Coreidae family (Leaffooted Bugs). After searching the Guide, the best match I could come up with was Chariesterus antenna*tor (Euphor*bia Bug), but the range does not seem to extend into California. After exploring an extremely helpful link (provided via Robin McLeod -- thanks!) to a PDF of NA Chariesterus Species, I am thinking that perhaps these are images of C. balli. According to the PDF, this species should occur regularly in California and is characterized by having multispinose humeri. There is more info. regarding the shape of the antellal segments and also the (not visible) metasternal ostiole. If someone would be willing to check my photos against the key in this PDF, I would be very curious to learn whether this is indeed C. balli.

I fear I am quite the beginner at all this and may be incorrect... but if I'm right, it would be a new species addition to the Guide!