Gumweed grows on the dunes around the beaches at Discovery Park and attracts an amusing variety of insects.
Yellow-faced bumble bee.
A solitary wasp, I think. Here's a guide to telling if a bee is a bee. It can be tricky.
Another mystery flower feeder. I like the groovy blue eyes.
This wasp had different business. Other, tinier, insects were feeding on this flower head was at work on the flower, and the wasp was laying eggs in the insects' bodies.