Scarab hunter wasp?
May 21, 2010
Never seen anything like this intimidating looking insect. Maybe close to two inches long? It looks similar to those published on your website….
Port Charlotte Florida
This is a Mydas Fly, Mydas clavatus, and you can read more about Mydas Flies on BugGuide. Your observations are astute. A Mydas Fly, according to BugGuide: “Resembles a wasp of the family Pompilidae, and is presumably a Batesian mimic.“ BugGuide also indicates: “Mydas larvae prey on beetle larvae, esp. those of June beetles.“