This volume treats the 157 species of predaceaous diving beetles (Dytiscidae) found in Finland, East Fennoscandia, Sweden, Norway, Denmark and the Baltic States

This book provides keys and descriptions for the identification of all the known species of larvae of Carabidae (ground beetles) of Fennoscandia and Denmark. It

This volume contains richly illustrated keys and descriptions of the 157 species of predaceous diving beetles (Dytiscidae) found in Fennoscandia, Denmark and th

This volume treats dance flies of the genus Empis (Diptera, Empididae) of Fennoscandia and NW Europe. Altogether, 64 species in 11 subgenera are recognized. Eac