Below are links to pages than illustrate butterflies in many of the sub-species of this class of insect. There is still debates of the exact number of butterfly sub-species, but current thinking suggests that there are around 20 sub-families within the seven families. 

Family Papilionadae (Swallowtails)

Papilioninae (Swallowtails)

Family Hesperidae (Skippers)

Hesperiinae (Grass Skippers)
Coeliadinae

Family Nymphalidae (Brush-footed or four-footed butterflies)

Satyrinae (browns)
Heliconiinae (longwings)
Danainae (milkweed butterflies)
Nymphalinae (Checkerspots, Peacocks, Anglewinds)
Family Lycaenidae (Blues, Coppers and Hairstreaks)
Polyommatinae (Blues)
Lycaeninae (Coppers)
Pieridae (Whites and allies)
Coliadinae (Yellows)
Pierinae (whites)