Apparently, one of the western-most records of this species in the continental US so far.
In both Cech and Kaufman Guides it says that only P. oileus gets this fsar dow. However this looks like P. communis/P. albescens complex
Host plant is a cultivated kumquat tree. I'm always impressed by the mimicry of bird droppings exhibited by these caterpillars.
Host plant is a cultivated kumquat tree
on wild lime!
Species ID? Open sunny pature...