This photograph shows a small wasp on the flower of a bloodroot.
Bloodroot is one of the showy spring wildflowers. The flower is mostly white and when it comes up in late April it is a large flower bud with leaves wrapped around it. There are a lot of pretty spring wildflowers. This is one of the largest and prettiest.
Bloodroot is a good example of a simple flower. Lots of different types of insects can obtain nectar from this flower, and many of them can pollinate this flower.
I don't know much about the wasp. I suspect that it is some kind of solitary wasp species. When I took this picture, there were several of them around, but I don't normally see them.
Typically in the spring there are fewer insects relative to the number of insects in the late summer and fall. Flowers that bloom in the spring typically have more nectar than those that bloom in the fall. There are some really interesting observations on this subject in several of the books I recommend.
O.K., a little more about bloodroot.
On the left is the emerging flower bud of bloodroot.
On the right is the nearly mature seed pod of blood root. When the seeds are mature, the pod will open, releasing the seeds. The seeds have a small fleshy area called an elaiosome. This is sort of like candy for ants. Ants take the elaiosome (and the attached seed) to their nests.
In this way, ants are instrumental in the dispersion of bloodroot seeds. This arrangement is actually common among woodland wildflowers--there are several others that disperse seeds this way.
I have not yet photographed this activity, but I hope to if I get the chance.