Dan,
Thanks for the map! Awesome! It does some funny things as you try to zoom in and out though. The square sizes stay the same and cover different areas. I think it has some optimal true zoom level to view the map.
It is interesting that there are no records between Santa Barbara and Monterey up to Fresno off the coast. I am sure the wasp is there, just no people to report :)
I see a dot (tree) not far from where I live, will go and check it out! I have not seen it before.