Earlier this year a book on the Finnish Orthoptera was published, the first in 90 years. All Finnish species are treated, including all Swedish and Norwegian fauna. The language is Finnish, with an English summary. A cd with 69 songs is provided with the book.
S. Karjalainen 2009. The grasshoppers and crickets of Finland, Orthoptera. Tammi Publishers. See: http://hepokatti.net/grasshoppers.html