Asked May 14, 2021, 2:49 PM EDT
We have cicadas in our neighborhood but not in our yard yet. But, in bare, muddy areas of our yard we have numerous little holes. Are those from cicadas? Also, we have a number of hard mud casts, about the size of Walnuts with perfectly round holes and tunnels that go back the depth of the casts. Someone suggested those might be the hives of cicada killer ground wasps? We have also had large black bumble bee type insects almost as big as hummingbirds flying around. Your thoughts?
Howard County Maryland