Mr. Ueda pointed out I'd included this in my Hedgpeth Dorid posting. Different species.
Thank you, Ken-ichi for prior postings. Ok - now I understand "the towel" dpom & others carry: face down in seagull/pigeon crap to see things on a dock...
No knowledge about animals at all
Looks a lot like the spotted spurge from earlier but no spots.
Bottle fly at blue bottle? Please say yes.
Maybe some kind of spurge?
About the size of a honey bee.
Was not fast enough to avoid being run over by a pair of trail bikers