The atlas is split across four volumes which mirror that of Duff’s series “Beetles of Britain and Ireland”.

Volume 1 covers the families Sphaeriusidae, Gyrinidae, Haliplidae, Noteridae, Paelobiidae, Dytiscidae, Carabidae, Helophoridae, Georissidae, Hydrochidae, Sphercheidae, Hydrophilidae, Sphaeritidae, Histeridae, Hydraenidae, Ptiliidae, Leiodidae, Scydmaenidae and Silphidae.

Volume 2 covers the family Staphylinidae.

Volume 3 covers the families Lucanidae, Trogidae, Geotrupidae, Scarabaeidae, Eucinetidae, Clambidae, Scirtidae, Dascillidae, Buprestidae, Byrrhidae, Elmidae, Dryopidae, Limnichidae, Heteroceridae, Psephenidae, Eucnemidae, Throscidae, Elateridae, Drilidae, Lycidae, Lampyridae, Cantharidae, Derodontidae, Dermestidae, Bostrichidae, Anobiidae, Lymexylidae, Phloiophildae, Trogossitidae, Cleridae, Dasytidae, Malachiidae, Sphindidae, Kateretidae, Nitidulidae, Monotomidae, Silvanidae, Cucujidae, Laemophloeidae, Phalacridae, Cryptophagidae, Languriidae, Erotylidae, Byturidae, Biphyllidae, Bothrideridae, Cerylonidae, Alexiidae, Endomychidae, Coccinellidae, Corylophidae, Latridiidae, Mycetophagidae, Ciidae, Tetratomidae, Melandryidae, Mordellidae, Ripiphoridae, Colydiidae, Tenebrionidae, Oedemeridae, Meloidae, Pyrochroidae, Salpingidae, Anthicidae, Aderidae and Scraptiidae.

Volume 4 covers the families Cerambycidae, Megalopodidae, Chrysomelidae, Nemonychidae, Anthribidae, Rhynchitidae, Attelabidae, Apionidae, Nanophyidae, Dryophthoridae, Erirhinidae, Raymondionymidae, Curculionidae and Platypodidae.