materials from different regiones of Russia are encoded as: FS RU CU UR WS SS MS CY NE NF KM AM SH KU

Dryops auriculatus (Geoffroy, 1785) WS Suisse
Dryops anglicanus Edwards, 1?09 Belgium Italy
Dryops ernesti Des Gozi, 1886 Piemont
Dryops luridus (Erichson, 1847) Italy
Dryops nitidulus (Heer, 1841) Bosnia
Dryops rufipes (Krynicki, 1832) "Bisamberg"
Dryops striatopunctatus (Heer, 1841) "Trencsen"
Dryops vienensis (Heer, 1841) "Kaltenlanttoeben"
Helichus lithophilus (Germar, 1824) USA
Helichus striatus LeConte, 1852 USA
Postelichus confluentus (Hinton, 1935) USA
Postelichus substriatus (Müller, 1806) Suisse
Postelochus thoracicus (Hinton) Mexico