Unfinished Busines : a final supplement to the Lepidoptera of the Orkney Islands

Based on a text left by Ian Lorimer which forms a supplement to his 'The Lepidoptera of the Orkney Islands' (1983) containing additions, addenda and corrigenda with hints for collecting in the islands and suggestions for further work. Also containins a list of species recorded in Sutherland and Caithness but not yet in Orkney.