While out walking in the park today we found this gall lying under some oak trees. I brought it home and painted it. I also cut it open to see if I could see what kind of larva was in it. It oozed some of the juice from the outer layer. The little wad of worms were in the center. They were quite small. The gall itself was about an inch long and wide at the widest point. I don't know what kind of gall it is but it was pretty. Do you know what kind of gall it might be? Happy Animal Wednesday.