Hidden Villa, in chaparral. Matches Phrynosoma coronatum in UC press guide, but that may be out of date.
These mystery insects appear every year, in the backyard, around March/April. They are flying, in tandem, with what seems like a little white ball. The flight is quite weak. It took numerous tries before I was able to get photos of even this quality. I really hope somebody on iNat can narrow the id down.
Shady riparian canyon area under oaks and laurels
This little guy was about a foot long crossing Alpine Road near the end or near where it has the junction with Joaquin