Aquatic Diptera larvae in Central, Northwest and North Europe. The forms and their identification, a survey
Aims of the treatise are: (1) Characterization of (semi)aquatic Diptera-Larvae on family level by description
and identification keys in form of family portraits. Treated are 45 families having water dependent larvae (a
few, several, many, all species), according to literature and own observation. (2) Presentation of further taxonomic
literature for each family. (3) Identification of taxa below family level, as far as keys in literature could
be adapted. A preceding general part provides a survey of the morphology of Diptera larvae, the relating terminology
and methods. The drawings in the text are supplemented by a gallery of colour photos.