Hermaeophaga mercurialis (Fabricius, 1792) - a new genus and species of flea beetle (Coleoptera: Chrysomelidae) in the Latvian fauna.

The first record of the flea beetle, Hermaeophaga mercurialis (Fabricius, 1792) in the Latvian fauna is presented. Six specimens of this species were found in the Daugavpils district of Naujene (south-eastern Latvia). Information on the distribution and biology of this species are presented in this paper.