This book is the first comprehensive account on the flea fauna of Fennoscandia and Denmark. Totally 89 species/subspecies are treated of which 69 have been found in the region. The remainder are known from neighboring areas and may turn up. The introductory part gives a brief historical overview of the earliest literature on fleas and a more detailed account of the Scandinavian literature up to the present. This is followed by a discussion of flea-host associations in relation to distribution in a general and Scandinavian perspective. Other chapters deal with life history, medical importance,...