Subject: bee type bug
Geographic location of the bug: Halifax, MA
Time: 12:37 PM EDT
Your letter to the bugman: makes in ground nest every year like an ant hole about a 1/2 inch.
Sandy soil, most nest are by driveway edge a patio edge
How you want your letter signed: Tony
This looks like a Sand Wasp in the Tribe Bembicini, and the activity you describe is consistent with Sand Wasps. Alas, we cannot provide a species identification. According to BugGuide: “About three quarters of the species prey on Diptera (Flies including disease carrying House Flies found around garbage), and it is believed that fly predation is ancestral in the group” which makes them beneficial. Sand Wasps are not aggressive and the chances of getting stung are very unlikely.