I haven't seen this species before, but I'm pretty sure this is Neoterpes trianguliferata. Note the pretty mellow yellow background color, and the brown triangles or wedges of color along the forewing margin. I love the way the angled wings give it a very "wavy" look along the back edge.
In the Moths of Western North America, Powell and Opler (2009) say that this species ranges from southern British Columbia to California; adult moths fly from late March through July in California; eggs are laid on gooseberries (Ribes spp.); and their caterpillars are twig mimics.
The next species is more difficult to identify. I haven't figured it out yet. But it's too spectacular not to share. If you have thoughts about the identification, let me know!
ADDENDUM (20 June 2013): Jerry Powell at UC Berkeley has kindly provided some assistance with identifying the second moth in this post. It's an American Angle Shades Moth (Euplexia benesimilis). Thank you, Jerry!