Contribution to the macroinvertebrate fauna of the Hungarian Danube II. Aquatic beetles (Coleoptera: Hydradephaga and Hydrophiloidea)

The main objective of this paper is summarizing faunistic results concerning aquatic bee-tles collected in different macroinvertebrate investigations carried out by the HungarianDanube Research Station of the Hungarian Academy of Sciences in the last fourteen years.The aquatic beetle specimens were identified by using keys and descriptions by C