I have something called Cicada Bees , or something like that, that build lots of holes in the ground right outside the door of my house. They tell me there harmless but, they make me nervous. Been trying to figure out how to get rid of them for years. Haven't seen any this year yet. Might be too early, or it might be the really cold winter we had last year.
Funny thing is, this type of bee is supposedly only suppose to make one hole lay a egg in it and fly away. The ones I have are not like that at all. There are definitely different bees going in and out of the same holes. And,, They seem to have different groups of bees because I've seen them fight if the wrong bee goes down the wrong hole. Not sure what they are but, the exterminator refuses to come over and look at them. Just keeps telling me there harmless.