Comprises about 1,324 species. This is 300 more than any figure given for Psychidae so far.

In Psychidae Arnscheid and Weidlich provide for the first time a complete tool for identifying the European bag worm moths. The book will provide a sufficient overview of the systematics and distribution of the European Psychidae. A total of 246 species is recognized. Description and diagnoses are accompanied by colour figures of the adults, usually depicting variation of male and female if the latter are winged. Black and white photographs of the male genitalia of most species (excluding parts of Naryciinae and Taleporiinae due to their similarity) are given for the first time. Notes on distribution and bionomics are added for every species. One new subfamily, one new genus and three new species are described.

Concerns about global biodiversity are rising dramatically, yet we are lagging behind in the most basic prerequisite for its understanding and conservation: the inventory. Insect species may make up five or ten times the number of all other plant and animal species combined, and, as such, they represent one of the major challenges in biosystematic science. World Catalogue of Insects is an initiative aimed at compiling worldscale, authoritative catalogues of monophyletic insect taxa. Volumes in this series contain standard nomenclatoral information on all names pertaining to the taxon treated, including type locality and distribution, to the extent this is relevant. Additional information is optional, e. g., location, status, and condition of types; biology; bibliographical information; pest status; vector status; etc. This volume ten focuses on Psychidae (Lepidoptera). (Series: World Catalogue of Insects)

A comprehensive dictionary describing all known viruses of animal and plants. It describes terms commonly used in virology as well as cell lines and chemicals used in organizations and the techniques applied in this work. Equations, formulae and definitions of units in virology are covered.