Ectemnius maculosus
- kingdom: Animalia
- phylum: Arthropoda
- class: Insecta
- order: Hymenoptera
- family: Crabronidae
- genus: Ectemnius
- species: Ectemnius maculosus
- Glen Ellyn
- Wheaton
Illinois- Knox
Indiana- Northampton
- Paxton
Massachusetts- Plymouth
Minnesota- Lawrenceville
New Jersey- Dexter
- New Hempstead
- New Square
- Pomona
New York- Millvale
Pennsylvania
United States