These soldier beetles are now appearing all over the place, including at FWG. They seem to prefer goldenrods, but at the moment goldenrods are just beginning to bloom, so they are making do with Queen Anne's lace. Actually, I've also seen them widely distributed on thistle and other flowering plants, but goldenrods are for sure, their favourite.
Lots of other insects are appearing too, and many such as yellowjackets are nesting. They will nest under rocks, in holes in the ground, and so on. Another good reason not to leave the paths and wander through the fields at FWG!