Thoressa masoni

Thoressa masoni, or Mason's ace is a butterfly in the family Hesperiidae. It was described by Frederic Moore in 1879. It is found in the Indomalayan realm in Burma, Thailand, Laos and Vietnam.^[2]

Thoressa masoni
Plate accompanying the original description
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Lepidoptera
Family:	Hesperiidae
Genus:	Thoressa
Species:	T. masoni
Binomial name
Thoressa masoni (Moore, [1879])[1]