- Europe
- Guy Padfield's European Butterfly Page
- European Butterflies: a portrait in photographs (Bernard Watts)
- Moths and Butterflies of Europe and North Africa (Paolo Mazzei et al.)
- Photography of European Butterflies and Moths - Bernard Fransen
- Butterflies (Morten Molgaard)
- euroleps (Heiner Ziegler)
- Lepiforum (in German)
- European Butterflies and Moths (Chris Jonko)
- Anything but common (Peter Groenendijk)
- pyrgus.de
- Europe - organisations
- European Butterflies Group (EBG) - Butterfly Conservation UK
- European Butterflies Group (EBG) - European species list + ID guides
- Butterfly Conservation Europe
- Switzerland
- Swiss Distribution Maps
- Lepido - Papillons de Suisse
- Butterflies and moths of Switzerland (Heiner Zeigler)
- France
- Diatheo - bibliography of French butterflies (Tristan Lafranchis)
- The Butterflies of the Monts du Lyonnais, France (Tim Cowles) - website currently unavailable :-(
- Butterflies of France (Roger Gibbons)
- Oreina - quarterly publication on French lepidoptera
- Les Carnets du Lépidoptériste Français
- Filming VarWild: Homepage (Pieter + Brigitte Kan)
- Jardin des papillons
- UK
- British Butterflies - Peter Eeles
- UK Moths
- Amateur Entomologists Society (UK)
- Butterfly Conservation
- Moths Count - UK recording scheme and maps
- Huntingdonshire Moth and Butterfly Group
- Benelux (Belgium, Netherlands, Luxemburg)
- Flemish Entomological Society - Phegea
- Butterflies in the Benelux
- Vlindernet - Dutch Lepidoptera
- Bulgaria
- Butterflies & Moths of Bulgaria
- Greece
- Butterflies of Greece - Lazaros Pamperis
- Butterflies of Greece - AI identification
- Butterflies of Greece
- Corfu butterflies conservation