| Popis: |
On the basis of original field surveys, carried out in Bulgaria in 2010, 2012 and 2015, 137 water beetle species from 12 families were recorded, 23 species new to this country. Compared with the 254 species from these families already known from Bulgaria, this figure is ca 9%, a significant result for a European country. Only within the Hydradephaga have the authors confirmed the satisfactory state of knowledge of the relevant fauna of Bulgaria, since the 2 new species as against 144 known ones makes up just 1.4%. In contrast, the percentages of species new to Bulgaria within the families Hydrochidae, Hydrophilidae and Helophoridae are 300% (sic!), 25% and 36.3% respectively, which indicates the poor state of knowledge of this group of beetles. The more interesting species among those listed are discussed. |
