Omalium rivulare ( Paykull, 1789 )

Shavrin, Alexey V. & Khachikov, Eduard A., 2023, Faunistic and diagnostic notes on some species of the genus Omalium Gravenhorst, 1802 of Caucasus, Turkey and Iran (Coleoptera: Staphylinidae: Omaliinae, Omaliini), Zootaxa 5227 (4), pp. 443-458 : 450-451

Omalium rivulare ( Paykull, 1789)

( Figs. 7 , 25–26 , 39 )

Staphylinus rivularis Paykull, 1789: 65

Material examined. RUSSIA: ROSTOV AReA: 1 ♀: Rostov-on-Don. 26.10.1981. E.A. Khachikov leg. (cKh); 1 ♀: same data. 20.05.1982 (cKh); 1 ♀: same data. 23.11.1991 (cKh); 1 ♁: same data. 09.10.1992 (cKh); 1 ♁: same data. 05.1994 (cKh); 1 ♁, 1 ♀: same data. 04.1996 (cKh); 1 ♀: same data. 07.11.2010 (cKh); 1 ♀: same data, Simferopolskaya str. 13.10.1979 (cKh); 1 ♀: Shchepkinsk. Forest. 13.04.1991. E.A. Khachikov leg. (cKh); 2 ♁♁: 10 km NW Gukovo, “Lesnaya Skazka”. 01.06.2000. E.A. Khachikov leg. (cKh); KRASNODAR TeRRITORY: 1 ♀: Derbiy, near Ubinskaya. 03.06.1986. I.A. Ushakov leg. ( ZMM); 1 ♀: 20 km Novorossiysk, environs of Malyi Utrish. In cow manure. 10.05.1995. M. Skomorokhov leg. (cKh); 1 ♁: Temnolesskaya St. 04.10.1999. V.V. Grebennikov leg. (cKh); STAVROPOL TeRRITORY: 1 ♁: Kislovodsk. 06.1994. E.A.Khachikov leg. (cKh); 2 ♁♁, 2 ♀♀: Pyatigorsk, Mineralnye Vody, Beshtau Mt. 04– 17.07.1993. E.A. Khachikov leg. (cKh); 2 ♁♁: same data. 06.1994. E.A. Khachikov leg. (cKh); 1 ♁: Pyatigorsk. 05.1993. E.A. Khachikov leg. (cKh); ADYGeA: 1 ♀: Caucasus Nature Reserve, W of Guzeripl, Abago Pasture. 1750 m a.s.l., Fagus forest with Abies , Sorbus etc. near the upper border of forest. 24.05.1985. A.B. Ryvkin leg. (cR); 2 ♁♁, 1 ♀: Abago, 11 km of Guseripl-Abago road. 05.10.2015. E.A. Khachikov leg. (cSh); 3 ♁♁, 1 ♀♀: Maykop, Khanskaya, right bank of Belaya R., 44°41′03.54′′N 39°55′41.25′′E. Flood-plain forest. 15.05.2014. E.A. Khachikov leg. (cKh, cSh); 1 ♁: Khanskaya. 16.05.2015. E.A. Khachikov leg. (cKh); 1 ♀: Maykop District, Kuzhorskaya, territory of Kuzhorskiy Botanic Preserve, 41°41′02.86′′N 40°14′38.93′′N 04.2014. Hornbeam-oak forest. V.A. Brinikh & E.A. Khachikov leg. (cKh); KARACHAY-CHeRKeSSIA: 1 ♀: Teberda State Nature Biosphere Reserve, Malaya Khotipara Mt. 2600–2800 m a.s.l., subalpic zone. 26.07.2007. A.S. Prosvirov leg. (cSh); 2 ♁♁: same Reserve, Alibek Gorge, Dvuyazychniy Glacier. 12.07.1996. E.A. Khachikov leg. (cSh); 1 ♀: same Reserve, Shumka tract. 18.06.1997. Yu.G. Arzanov leg. (cSh); 1 ♀: Teberda. 25.06.1940. S. Nikulin leg. ( ZIN); KABARDINO-BALKARIA: 1 ♀: Adyl-Su near Tyrnyauz. 1900 m a.s.l. 27.06.1991. J. Martens & W. Schawaller leg. ( SMNS); DAGeSTAN: 1 ♀: valley of Samur River, Garakh ca. 35 km SW of Magaramkent. 700–850 m a.s.l., Crataegus , Quercus , Acer , Rosa etc. in drift and litter. 23.10.1987. S. Golovatch leg. (cSh); 1♀: Tabasaranskiy District, above Dyubek. 10– 14.05.2008. E.A. Khachikov leg. (cKh); 1 ♁: Kurush. 1850 m a.s.l. J. Martens & W. Schawaller leg. ( SMNS); GEORGIA: MTSKHeTA-MTIANeTI: 5 ♁♁, 5 ♀♀: Saguramo Reserve, NE of Etsketa, Zedacni, 1100–1200 m a.s.l. Forest with Fagus , Carpinus , Acer etc., in litter and under bark. 20.05.1987. S.I. Golovatch & K.Yu. Eskov leg. (cSh, ZMM); KVeMO-KARTLI: 1 ♁, 3 ♀♀: Algeti National Park, W of Manglisi. 1400–1500 m a.s.l., forest with Fagus , Picea , Abies etc., in litter and under bark. 16– 18.05.1987. S.I. Golovatch & K.Yu. Eskov leg. (cSh); TBILISI: 3 ♁♁, 3 ♀♀: Tskhneti. 1150–1300 m a.s.l. Forest with Fagus , Carpinus , Acer etc., in litter. 16, 18.05.1987. S.I. Golovatch & K.Yu. Eskov leg. (cSh, cR); 1 ♁: pass between Tbilisi and Bikhura. 1050 m a.s.l., in litter and soil. 10.05.1987. S.I. Golovatch & K.Yu. Eskov leg. (cSh); KAKHeTI: 3 ♁♁, 3 ♀♀: N Kvareli. 700–750 m a.s.l., forest with Fagus , Carpinus , Quercus etc., in litter and under bark. 04– 05.05.1987. S.I. Golovatch & K.Yu. Eskov leg. (cSh); 3 ♀♀: Mariamjvari Nature Reserve, NNE of Sagarejo, 1150–1250 m a.s.l., forest with Fagus , Carpinus , Acer , Pinus etc. 13– 14.05.1987. S.I. Golovatch & K.Yu. Eskov leg. ( ZMM); ARMENIA: LORI: 7 ♁♁, 4 ♀♀: Odzun W of Alaverdi. 1500–1550 m a.s.l., forest with Quercus , Fagus , Carpinus etc., in litter and under stones. 23– 24.07.1987. S.I. Golovatch & K.Yu. Eskov leg. (cSh, ZMM); 1 ♁, 1 ♀: Stepanavan, 1500–1600 m a.s.l., Quercus , Fagus , Carpinus etc. forest, litter and under bark. 21– 22.05.1987. S.I. Golovatch & K.Yu. Eskov leg. ( ZMM); ARAGATSOTN: 1 ♁: Idjeva District, Tsakhkevank. 850–900 m a.s.l., forest with Quercus , Acer , Carpinus etc., in litter and tree holes. 25.07.1987. S.I. Golovatch & K.Yu. Eskov leg. (cSh); TAVUSH: 2 ♁♁, 1 ♀: Dilijan National Park, Akhnabat Valley near Salakh. 1400–1500 m a.s.l., forest with Fagus , Taxus , Carpinus , etc., in litter, under bark and stones. 17.04.1983. S.I. Golovatch leg. (cSh); AZERBAIJAN: SHAKI-ZAQATALA: 7 ♁♁, 2 ♀♀: N of Vartashen. 900 m a.s.l., forest with Fagus and Quercus , in litter. 02.05.1987. S.I. Golovatch & K.Yu. Eskov leg. (cSh, ZMM); 1 ♀: NW above Bashlayski ca. 20 km NNW of Sheki. 1250 m a.s.l., forest with Fagus , Carpinus , Acer etc., in litter. 03.05.1987. S.I. Golovatch & K.Yu. Eskov leg. (cSh); 1 ♀: 5 km N of Kutkashen (=Gabala). 1150–1200 m a.s.l., forest with Fagus and Carpinus , in litter. 02.05.1987. S.I. Golovatch & K.Yu. Eskov leg. ( ZMM); LANKARAN: 1 ♀: Chilisa, ca. 7 km N of Kelbadjar. 1400–1500 m a.s.l., forest with Quercus , Carpinus , Acer etc., in litter and under bark. 31.05.1987. S.I. Golovatch & K.Yu. Eskov leg. ( ZMM); GEORGIA: ADZHARIA: 1 ♁: W PART Of ADZHARO-IMERETINSKIY MOUNTAIN RANGE,NEAR KLIMO,LEfT BANK Of KINTRISHI RIVER, 41°43’58.20”N 42°04’59.00”E. 11.04- 06.06.2016. D. FOMINYKH LEG.( CKH); TURKEY: ISTANBUL: 1 ♁:Yalova-Orhangazi. 11.05.1976. C. Besuchet leg. ( MHNG); ZONGULDAK: 2 ♁♁: S Zonguldak. 500 m a.s.l. 23.05.1976. C. Besuchet & I. Löbl leg. ( MHNG); KASTAMONU: 1 ♀: Küre â 5 km N. 600 m a.s.l. 18.05.1976. C. Besuchet & I. Löbl leg. ( MHNG); KONYA: 1 ♁, 2 ♀♀: Sertavul Gegidi. 1500–1600 m a.s.l. 18.04.1978. C. Besuchet & I. Löbl leg. ( MHNG); ARTVIN: 1 ♁: Artvin. 800 m a.s.l. 07.06.1986. C. Besuchet, I. Löbl & D. Burckhardt leg. ( MHNG); 1 ♁, 1 ♀: same data. 1500 m a.s.l. 09.06.1986 ( MHNG); IRAN: MAZANDARAN: 1 ♁: SSO Gol-e-Loveh [Kanaskuh], 37°18′N 55°43′E. 1200 m a.s.l. 21.08.1975. A. Senglet leg. ( MHNG); TeHRAN: 1 ♀: Kandovan, 36°10′N 51°19′E. 12.07.1973. A. Senglet leg. ( MHNG).

Published records. ARMENIA: Assing & Schülke 2019: 100; AZERBAIJAN: Hochhuth 1849: 204; GEORGIA: Jakobson 1909: 455; NAGORNO-KARABAKH: Assing & Schülke 2019: 100; RUSSIA: ADYGeA: Zanetti 2002: 56; DAGeSTAN: Khachikov et al. 2021: 250; KARACHAY-CHeRKeSSIA: Khachikov 1998: 6; KRASNODAR TeRRITORY: Zanetti 2002: 56; NORTH OSSeTIA-ALANIA: Zanetti 2002: 56; STAVROPOL TeRRITORY: Khachikov 1998: 6; TURKEY: Zanetti 2002: 56, Bordoni 2010: 49, Assing 2013: 106, 2014: 1135, Anlaş 2019: 217.

Distribution. Omalium rivulare is widely distributed species in the Holarctic Region ( Herman 2001, Schülke & Smetana 2015).

Remarks. Habitus as in Fig. 7 . Aedeagus as in Figs. 25–26 . Female genital segment as in Fig. 39 .

It is here recorded from Iran for the first time.

Figures

FIGURES 1–10. Habitus of Omalium: 1—O. caesum (Turkey, Bursa: Uludağ), 2—O. cinnamomeum (Turkey, Antakya: Kişlak- Şenköy), 3—O. excavatum (Russia, Karachay-Cherkessia: Arkhyz), 4—O. falsum (Georgia, Tskhneti), 5—O. littorale (Russia, Adygea: Abago), 6—O. riparium impar (Russia, Krasnodar Territory: Khosta), 7—O. rivulare (Armenia, Alaverdi), 8—O. rugatum (Iran, Zagros Mts.), 9—O. turcicum (Russia, Adygea: Lagonaki), 10—O. wunderlei (Turkey, Gümüşhane: Erzincan- Kelkit). Scale bars: 1.0 mm.

FIGURES 19–26. Aedeagus of Omalium falsum (Figs. 19–20: Georgia, Tskhneti), O. littorale (Figs. 21–22: Russia, North Ossetia-Alania: Kabardino-Sunzhenskiy Mts.), O. riparium impar (Figs. 23–24: Russia, Kransnodar Territory: Sochi National Park), O. rivulare (Figs. 25–26: Turkey, Artvin: Artvin): 19, 21, 23, 25—parameral view, 20, 22, 24, 26— lateral view. Scale bars: 0.1 mm.

FIGURES 33–41. Female genital segment (ventral view) and spermatheca (shown by arrow in Fig. 40) of Omalium: 33—O. caesum (Russia, North Ossetia-Alania: Zincar), 34—O. cinnamomeum (Turkey, Antakya: Kişlak-Şenköy), 35—O. excavatum (Russia, Krasnodar Territory: Caucasus Nature Reserve), 36—O. falsum (Turkey, Rize: Ardeşen), 37—O. littorale (Russia, Volgograd Area: Elton Lake), 38—O. riparium impar (Georgia, Tskhneti), 39—O. rivulare (Russia, Krasnodar Territory: Derbiy), 40—O. rugatum (Russia, North Ossetia-Alania: Zincar), 41—O. turcicum (Russia, Krasnodar Territory, Caucasus Nature Reserve). Scale bars: 0.1 mm.