Many in shade of small bay tree in area where fallen oaks fairly recently removed, ending most shade. Almost none nearby under abundant chips.
It will be interesting to see how vegetation here changes now that it is a clearing. There were many natives -- monkeyflower, honeysuckle, wood fern, toyon, poison oak, sanicle, stachys, native blackberry.
cultivated: I know the area, I know the tree, here's the same location in Aug. 2023: https://www.inaturalist.org/observations/187103331 and this https://www.inaturalist.org/observations/187103330
Photo is an actual photo of live insect taken by me at the time listed 2023-10-01 16:43:29 at OAK airport arrival terminal for southwest flight (SWA3845) from Baltimore. It was found alive on a passenger inside the airplane while landing, captured, and euthanized in the airport terminal. All details (ie coordinates, time of photo) are exact. No other individuals were seen but a detailed search of fuselage was not performed by poster.