The wasp pictured is a mud dauber- almost harmless. They have stings, but are more interested in finding mud to build with than being bothered by someone leaning over and watching. I usually see them hovering on the Sarrs, and they come out a lot when I water. I just aim the water at a good clay-ey spot and tell them "come an' get it!" It is fun watching them make mud balls!
Oh, I love jumping spiders! They and mantids are the only invertebrates that will actually turn and look back at you while you're checking them out. Jumpers talk with their pedipalps, a sort of sign language.
I've found a number if interesting critters sow up at the bog, including pygmy hornets, water walking paper wasps, drone flies, robber flies and once a laquer-bright yellow and black fruit fly, with electric magenta and blue eyes. Never saw one like it before, and haven't seen it's like since. Unfortunately, I do most of my "wow!" bug finding in the pitchers. I have found metallic green bees, technicolor beetles, even some nice butterflies. It's amazing what comes around to sample the pitcher's wares.