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The tribe Argynnini, commonly known as Fritillaries, is a group of fairly uniform, small to medium sized butterflies. Almost all species have an orange-brown ground colour with a pattern of black spots and streaks on the upper side, and some pearly white to silvery white spots on the underside, particularly on the hindwing.
Classically, the Argynnini has been divided into as many as 17 genera, but here we follow Simonsen (2006b) and Simonsen et al. (2006) and reduce the number of genera to six. The exact number of species in the tribe is uncertain. On the Tree of Life, we tentatively list 104 species. But this number is highly uncertain and may change dramatically with forthcoming revisions of the species rich and taxonomically insufficiently known genus Boloria and the Argynnis subgenus Speyeria.
Most Argynnini species are distributed in the temperate, alpine and arctic regions of the Holarctic. The genus Yramea is endemic to south temperate and Andean South America, while Euptoieta is a truly "neotropical" genus, with one species (Euptoieta claudia) that also extends well into temperate North America.