Microdon megalogaster

Diagnosis
Subgenus: Microdon Large, hairy bee mimics. Color pattern distinctive: "scutum, scutellum, and abdomen to tergite 2 are covered in yellow pile, while tergites 3-5 are covered in black pile." (1)

Distribution
Canada; Ontario, Quebec. United States; Connecticut, Georgia, Illinois, Minnesota, Nebraska, North Carolina, Wisconsin

Biology
Ant host: Formica subsericea, Formica subaenescens