Amateur Entomologists Society
Club for insect enthusiasts. Includes a sign-up for entymology pen pals.
BIBBA - British Isles Bee Breeders Association
Originally founded in 1964 for the conservation, restoration, study, selection and improvement of native and near native bees of Britain and Ireland.
British Dragonfly Society
Encouraging the study and conservation of dragonflies and their natural habitats, especially in the United Kingdom.