Cychrus caraboides (Linnaeus, 1758)

Material: NNR: Sarov, 05–08.2013, 4 ex., det. S. K. Alekseev (OA) .

Cylindera arenaria viennensis (Schrank, 1781)

Material: NNR: Vyksa, 17.08.2017, 18.08.2017, 31.07.2018, 4 ex. (PC).

Note. Psammophile. This is a very rare local species. It inhabits floodplain areas with extensive sandy banks and sand and mud banks (Gebert 2014), open sandy areas of anthropogenic origin (Spitzer et al. 2014).