Species ID for this specimen provided by BOLD Systems. DNA for this specimen is a solid match with species Pyla rainierella at BOLD.

See here for Pyla rainierella species page at BOLD Systems:
And here for BOLD's Public Data Portal - BIN Page.
And here for this specimen's DNA Record Page at BOLD Systems.

I occasionally see small groups of these moths, including this specimen, in the day time, always flying around and about Prostrate Ceanothus, Ceanothus prostratus. Whether this is the host plant I do not know for sure. These day time moths are hard to catch, as they drop and often escape into the flat-matted follage of the shrub. Also, I occasionally see these moths at nighttime by the porch light.