Arthonia helvola
- kingdom: Fungi
- phylum: Ascomycota
- class: Arthoniomycetes
- order: Arthoniales
- family: Arthoniaceae
- genus: Arthonia
- species: Arthonia helvola
Bells Corners
Ontario
CanadaUmeå
Västerbotten
SwedenPeach Lake
New YorkTowamensing Trails
Pennsylvania
United States