This page contains a listing of all primary species found in the UK (click here to also see secondary species). The species are organised by the family to which they belong. If you can't find the butterfly you're after, then it may be a moth, in which case this page might help!
The Lycaenidae family contains species more commonly known as "hairstreaks", "coppers" or "blues". The vernacular names follow Emmet and Heath (1990). The scientific names follow Bradley (2000).