This is the first part of a multivolume monograph dealing with the about 400 species of springtails (Collembola) which are known to occur in the Nordic countries, including the Arctic Islands. Volume 1 contains richly illustrated identification keys and full descriptions of 161 species of the section Poduromorpha. The geographical distribution and the preferred natural habitats of the species are summarised. New morphological concepts in species diagnostics are introduced, in particular concerning the mouthparts' morphology which greatly aids in precise identification of the many difficult species of the family Onychiuridae. The book will be indispensable to everyone working with springtail identification in northern Europe. The introduction of new diagnostic characters will be of universal interest to any Collembola taxonomist.

The book provides richly illustrated identification keys and descriptions of the ca. 240 Nordic springtail species of Entomobryomorpha and Symphypleona, thus completing the survey which was introduced with the first volume on Poduromorpha in 1998.

This volume completes the survey of the ca. 400 species of springtails, which can be found in Finland, Sweden, Norway, Denmark, Iceland, the Faroes and the Arctic Islands and includes the sections Entomobryomorpha and Symphypleona. The first volume, published in 1998, covered Poduromorpha. Identification keys and full descriptions of the species are richly illustrated by line drawings. Photos are provided for some species displaying characteristic patterns of pigmentation. New diagnostic characters, including sensillary chaetotaxy and details of the mouth apparatus, are introduced. With the appearence of this book soil scientists and the interested amateur have now a modern tool to identify all species of Nordic springtails. In addition the habitat preferences and geographical distribuition are summarised. The book will be of general interest to everyone working on springtail identification.

A reference work containing richly illustrated descriptions and identification keys to the 161 Nordic species of the springtails of the section Poduromorpha, as well as summarising their known distribution and habitat preferences. Several new taxa are described.

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, morphology and collecting/preservation of fleas, and are followed by a flea–host index. The systematic part, amply illustrated with Frans Smit’s outstanding line drawings, provides identification keys to adult fleas from family to subspecies. For each species/subspecies relevant available information on synonymy, identification, distribution, host relations and biology is given. The book concludes with a summary of the provincial distribution of fleas in Fennoscandia and Denmark, a bibliography and a taxonomic name index.

Many species of Drosophila are very important laboratory animals in almost all fields of biological research, because of the ease of culturing on artificial media as well as of their rapid rate of development. Also the study of natural populations, including their living conditions, has become more and more important. "The Drosophilidae (Diptera) of Fennoscandia" gives a detailed account of the taxonomy, identification, distribution, and biology of 17 genera and 128 species of West European Drosophilidae. Full descriptions and standardized illustrations of the terminalia are provided for 80 North European species. The aims of this books is to faciliate field work by providing identification keys and by giving hints for further studies on biology, distribution and other aspects of drosophilids.