After taking the picture of the lady beetle larva in the woods, I crossed the stream on a fallen tree trunk. I worked my way from there through a fairly dense area of brambles and small trees to the slope that leads to what I call the uplands part of the empty lot. This is about 30 feet higher than the lowlands across the stream and it is mostly clear of trees. It is filled with ragweed and milkweed with a few empty spots that are almost barren, with just bare clay which sometimes holds standing water and other times is baked into a cracked, hard surface. In one of those empty spots, I followed this wasp, which is Cerceris fumipennis, an apoid wasp (Apoidea) in the family Crabronidae. It landed and disappeared into this little hole in the ground. I figured it would eventually come out again so I got down and waited. I was rewarded for my patience when he appeared at the entrance and was able to get a half dozen shots off before he flew off into the distance.