Carabid (Coleoptera, Carabidae) migration studied with Laboulbeniales (Ascomycetes) as biological tags.

A study was made of the occurrence of ectoparasitic Laboulbeniales among carabids caught in study areas in and around the recently reclaimed Lauwerszeepolder. Although the fungi cannot be used to trace the origin of immigrants, the results support the point of view that migration in many carabid species is rare and mostly restricted to early adult life.