Stenus planifrons robustus L. Benick, 1914

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 planifrons robustus L. Benick, 1914 Fig. 7 , Suppl. material 1

Chorology.

The distribution of the polytypical Stenus planifrons reaches from Germany and Switzerland over the Balkans, Anatolia, the Levant, and the Ukraine eastwards to South Russia, Caucasia, Iran, and Turkmenistan. In Iran, the species is represented by the southeastern subspecies Stenus planifrons robustus , which is distributed in Cyprus, Lebanon, Israel, Syria, Anatolia, Iraq, and northern Iran as far east as Turkmenistan.

Biogeographical characterization.

Due to this arched areal north, west, and east of the Mesopotamian plain, the evolutionary origin of the subspecies goes back to the Syrian Pleistocene refuge. In Iran, Stenus planifrons robustus reaches its southern and eastern distribution limit in the southern Zagros Mountains (29°40'N) and the Turkmeno-Khorasanian mountain ranges (59°54'E) (Fig. 7 ).

Bionomics.

This cold resistant taxon was found in altitudes up to 3250 m.

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.