Dianous coerulescens korgei Puthz, 2002

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 : 19

Dianous coerulescens korgei Puthz, 2002 Fig. 2 , Suppl. material 1

Chorology.

Dianous coerulescens , widely distributed in the temperate West Palaearctic, is recorded as far east as Kazakhstan ( Kastcheev and Puthz 2011: 438) and western Siberia ( Schülke and Smetana 2015: 799). Judging from the distribution in the Caucasus and Turkey ( Schülke and Smetana 2015: 799), the occurrence in northern Iran was expected. One male of Dianous coerulescens , which was collected in moss at a small waterfall in the northern slope of Mount Sabalan, represents the first record of both the genus and the species in Iran (Fig. 2 ). This southernmost finding of the polytypical species at 38°19'N belongs to Dianous coerulescens korgei Puthz, 2002, which was hitherto known only from the type locality near Trabzon, Northeast Turkey.

Biogeographical characterization.

Dianous coerulescens cannot be assigned to any of de Lattin’s (1951, 1957, 1967) southern Palaearctic glacial refuges.

Figures

Figures 1 - 6. Distribution of Steninae in Iran. 1. Geographical subdivision of Iran modified after Petrov (1955) and 2 - 6 distribution data of Steninae: 2. Dianous and the Stenus alpicola species group: ● Dianous coerulescens korgei, ○ Stenus proprius; 3. Stenus ater species group: ➕ Stenus affaber, ● Stenus ater, △ Stenus hypoproditor, ■ Stenus intricatus zoufali, ● Stenus mongolicus, ○ Stenus nodipes, ▲ Stenus skoraszewskyi; 4. Stenus brunnipes species group: ● Stenus brunnipes brunnipes; 5. Stenus canaliculatus species group: ● Stenus canaliculatus; 6. Stenus cautus species group: ○ Stenus cautus. Abbreviations: C - Caspian wet forest region, D - deserts and salt marshes, G - Golestan region, Gh - Ghohrud Mountains, Hm - mountains of Hormozgan, Khu - Khuzestan Plain, NB - North Baluchestan Mountains, NKh - North Khorasan Mountains, NNW - northern part of North Zagros Mountains, NZ - North Zagros Mountains, SB - South Baluchestan Mountains, SC - coast of Persian Gulf and Oman Sea, SE - southern slopes of Elburz Mountains, SKh - southern Khorasan Mountains, SZ - southern Zagros Mountains in Fars, Z - Zagros Mountains.