Gray Petaltail
- kingdom: Animalia
- phylum: Arthropoda
- class: Insecta
- order: Odonata
- family: Petaluridae
- genus: Tachopteryx
- species: Tachopteryx thoreyi
Tallahassee
Florida- Huntington
Indiana- Beltsville
- Cabin John
- Silver Hill
- Suitland
Maryland- New Buffalo
Michigan- New Hempstead
- New Square
- Pomona
- West Point
New York- Asheville
- Brevard
- Hillsborough
North Carolina- McArthur
Ohio- Lawrence Park
- Linglestown
- Paxtonia
Pennsylvania- Sneedville
Tennessee- Bull Run Mountain Estates
- Woodbridge
Virginia- Ansted
West Virginia
United States