Appearance
The adult is a strong flyer, and may be found anywhere but forests.Flight time is between March and October, size is between 38 mm and 46 mm, and is usually found at altitudes between sea level and 2700 m.
Naming
SynonymsPapilio lathonia Linnaeus, 1758
Argynnis lathonia
Papilio valdensis Esper, [1804]
Issoria saturata (Röber, 1896)
Issoria hungarica (Aigner-Abafi, 1906)
Issoria florens Verity, 1916
Issoria sheljuzhkoi (Stauder, 1923)
Argynnis isaeea Gray, 1846
Rathora isaeae f. geogr. isaeoides Reuss, 1925
Subspecies
⤷ "Issoria lathonia lathonia"
⤷ "Issoria lathonia isaea"
⤷ "Issoria lathonia messora"
⤷ "Issoria lathonia isaeoides" Reuss, 1925

Food
Host plantsWild pansy or heartsease - Viola tricolor
Field pansy - Viola arvensis
Other - Viola species
Lucerne - Medicago sativa
Borage - Borago officinalis
(Bretherton, 1990; Porter, 1997).
Heat-dependent, the caterpillars of this species are found on the hottest places of the foodplants.
References:
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