David Carter was an entomologist at the Natural History Museum, London, where he specialized in Lepidoptera for more than forty years and managed part of the vast National Collection of World Insects. He has written a number of books and technical manuals and has contributed to many scientific papers in collaboration with specialists throughout the World. He is now retired and living in Northumberland where he enjoys studying and photographing insects in his own garden.
Richard Jones is an entomologist, a fellow of the Royal Entomological Society and of the Linnean Society of London, and past president of the British Entomological and Natural History Society.