Language: Bilingual in French and German
The 5th volume concerning the bees of Switzerland treats the genus Ammobates, Ammobatoides, Anthophora, Biastes, Ceratina, Dasypoda, Epeoloides, Epeolus, Eucera, Macropis, Melecta, Melitta, Nomada, Pasites, Tetralonia, Thyreus, Xylocopa. Typical features, biology, a determination key with border species, a short classification appear for each genus in German and French.
For each species, the following are briefly discussed : both sexes, distribution, season of flight, biology, and if present, parasitic bees with their host species. A distribution map completes these species accounts.