British Butterflies
Photographs and descriptions of British butterflies by Steven Cheshire.
British Butterfly Conservation Society
Dedicated to saving wild butterflies, moths and their habitats throughout the UK.
Butterflies of Catalonia
Species list and flight charts. Includes sections on butterflies of Andorra and wasps of Catalonia.
Butterflies of Gloucestershire
A guide to the butterflies of Gloucestershire, UK, with photographs, distribution maps, and conservation status for each species.
Butterflies of Ireland
Guide to the butterflies of Ireland, with photographs of most species and a guide to indoor tropical butterfly houses.
Butterflies of Northamptonshire
Annotated list of 37 species, with photos of most.
Butterfly Ireland
Photographs of Ireland's butterflies, with many photographs of eggs, pupae, and larvae. Also includes flight charts, distribution maps, sightings, and links.
European Butterflies by Mario Maier
Photos and descriptions of many species. In German and English.
Garden Safari: Butterflies
Photographs and notes on common butterflies in a garden in the Netherlands.
Guy Padfield's European Butterflies
Pictures of over 150 European species of butterfly, with butterfly diary, schools' page, and links.
Matt's European Butterflies
Features photos of many rare and unusual European butterflies. Personal observations and comments on all species are included.
Moths and Butterflies of Europe
A large photo gallery of European moths and butterflies, including larvae and pupae.
UK Butterflies
Photographs, food plants, and flight charts of all species regularly found in the United Kingdom.
Yorkshire Butterfly Conservation
Field trips, flight times, photographs, and other resources.