We have this bug in our yard that is digging it’s nest in the ground. What’s weird is the queen or mother bug started digging the nest then this one took over and we haven’t seen the big one since. The big one was probably 2 to 21/2 inches long and wider. It was huge. I don’t know if you can see in the pic, but the bug in this pic has a light green head with round black eyes. We have never seen one like this here and wondered what kind of bug it was and is it aggressive? Thanks so much.
The Great Golden Digger Wasp is a solitary species that provisions its underground nest with grasshoppers, katydids and crickets to provide food for the young. It is a nonagressive species. Your observation of the “queen” may be a misinterpretation of the actual events. We are not sure if Great Golden Digger Wasps will appropriate the nest of another insect, like a Cicada Killer.