Mustached clubtail dragonfly
- kingdom: Animalia
- phylum: Arthropoda
- class: Insecta
- order: Odonata
- family: Gomphidae
- genus: Gomphus
- species: Gomphus adelphus
Petawawa
Ontario- Berthierville
- Farnham
- Montréal
Quebec
Canada
Stamford
Connecticut- Bar Harbor
- Orono
Maine- Ontonagon
Michigan- Saranac Lake
New York
United States