A guide to the butterflies of Gloucestershire, UK, with photographs, distribution maps, and conservation status for each species. members.aol.com/bcglos/bflyglos.html
Information on European butterflies, including photo galleries, poems and lyrics, literature, and a list of good butterfly spots. www.vlinderstichting.nl/butterflyinfo
Photographs of Ireland's butterflies, with many photographs of eggs, pupae, and larvae. Also includes flight charts, distribution maps, sightings, and links. www.butterflyireland.com
The site of the Hertfordshire and Middlesex Branch of Butterfly Conservation includes sightings, conservation work, and an identification guide. www.hmbutterflyconservation.org.uk
Includes photos, first sightings, newsletters, information about White Hill Reserve, events and contact information. Located in the UK. www.kentbutterflies.freeserve.co.uk
Monitors and conserves butterflies and moths in Dorset. Events, survey data, recording forms, sightings, and species accounts. www.dorsetbutterflies.co.uk