Butterflies fly during the day. They belong to the same insect group, the Lepidoptera, as moths, and there are many similarities between them. However, if the antennae end in a noticeable club and the wings are held above the body when resting, you are probably looking at a butterfly. There are 59 species in the UK.
Below are some of the butterflies our Identification and Advisory Service team is most often asked about. Select one to find out more, including identification clues.
If you want help identifying a butterfly but can't see it in this gallery, you can post your own image and ask our experts and enthusiasts in the Bug forum.