Butterflies of Continental Europe

Butterflies from the Balkans (Bulgaria, Greece, the Republic of Macedonia), Italy, Sweden, Estonia, Hungary, Italy,  Poland and Portgual.

UK butterflies have their own galleries. Try Wikipedia if you want to find the geolocation of any butterfly; most of the better images will be there.

swallowtails
swallowtails

Papilionidae

whites, yellows
whites, yellows

Pieridae

blues, coppers, hairstreaks
blues, coppers, hairstreaks

Lycaenidae

fritillaries, browns
fritillaries, browns

Nymphalidae

skippers
skippers

Hesperiidae

Charles Sharp on Wikipedia

See my gallery of 133 different butterflies of Europe (including UK) on Wikipedia