Stenus caspius Puthz, 1972

Serri, Sayeh & Frisch, Johannes, 2016, Species diversity, chorology, and biogeography of the Steninae MacLeay, 1825 of Iran, with comparative notes on Scopaeus Erichson, 1839 (Coleoptera, Staphylinidae), Deutsche Entomologische Zeitschrift 63 (1), pp. 17-44 : 21

Stenus caspius Puthz, 1972 Fig. 8 , Suppl. material 1

Chorology.

Described from the Talish Mountains ( Puthz 1972d: 127), Stenus caspius has its main distribution in Transcaucasia and the South Caspian mountain ranges from Georgia as far east as the Turkmeno-Khorasanian mountains. It apparently is the most common Stenus in the Hyrcanian zone in the northern slopes of the Talish and Elburz Mountains, but it was also found outside of this biogeographical unit in West Azarbaijan, the northern Zagros Mountains, and south of the Elburz (Fig. 8 ).

Biogeographical characterization.

Judging from this distribution pattern, Stenus caspius is a typical expansive Caspian faunal element.

Figures

Figures 7 - 12. Distribution of Steninae in Iran. 7. Stenus circularis species group: ○ Stenus planifrons robustus; 8. Stenus clavicornis species group: ○ Stenus caspius, ● Stenus providus providus; 9. Stenus comma species group: ■ Stenus aereus, ○ Stenus asiaticus, ● Stenus bicornis, ▲ Stenus biguttatus, □ Stenus comma comma; 10. Stenus cordatus species group: ○ Stenus araxis, ● Stenus turk; 11. Stenus crassus and Stenus fornicatus species groups: ■ Stenus crassus, △ Stenus formicetorum, ○ Stenus fornicatus; 12. Stenus glacialis species group: ➕ Stenus armeniacus, ▲ Stenus hospes, ■ Stenus limicola, ○ Stenus medus, ▲ Stenus parcior, □ Stenus persicus, ● Stenus schah.