Stenus (Nestus) vinnulus Casey, 1884

Ryvkin, Alexandr B., 2012, New species and records of Stenus (Nestus) of the canaliculatus group, with the erection of a new species group (Insecta: Coleoptera: Staphylinidae: Steninae), European Journal of Taxonomy 13, pp. 1-62 : 37-38

Stenus (Nestus) vinnulus Casey, 1884

Stenus vinnulus Casey, 1884: 112 .

Stenus vinnulus – Fall 1926: 61. — Puthz 1972d: 107.

Stenus (Nestus) vinnulus – Puthz 1972b: 171. — Ryvkin 1987: 159. — Silfverberg 1988: 20 <holotype of confusoides Renkonen, 1935 >. — Ryabukhin 1999: 46.

Stenus (s. str.) vinnulus – Campbell & Davies 1991: 112.

Stenus (Nestus) confusoides Renkonen, 1935: 27 .

Stenus confusoides – Strand 1954: 66. — Puthz 1970a: 39.

Stenus (Nestus) confusoides – Renkonen 1936: 179. — Palm 1961: 90. — Puthz 1965: 27. — Puthz 1967a: 49. — Tichomirova 1973: 173.

Material examined

RUSSIA: 1 ♂, 1 ♀, Karelia, White Sea, Bay of Kandalaksha , N shore of Chupa Inlet , 500 m NE of Nizhnyaya Polunga: Blizhneye Lake, 18–19 Jul. 2005, P. Petrov leg. ( AR) ; 1 ♀, Tuva, Todjenskiy District, Azas Nature Reserve, environs of Azas Lake , Zelyonoye Lake, 980 m a.s.l., mossy swamps with Ledum palustre , Eriophorum sp., Carex spp., Rubus chamaemorus, Rhododendron sp. etc. near banks of rill (rhadon!) – in moss, 3 Jun. 1990, A.B. Ryvkin leg. ( AR) ; 1 ♀, Evenkia, Baykitskiy District, Central Siberian Biosphere Reserve, Stolbovaya River 8 km up-stream of river mouth, 60 m a.s.l., mosses and litter on open swamp with Carex spp., Comarum palustre , sparse Menyanthes trifoliata , true mosses, Sphagnum spp. etc., 20 Sep. 1991, A.B. Ryvkin leg. ( AR) ; 1 ♀, Evenkia, Central Siberian Biosphere Reserve, Stolbovaya River basin: lower flow of Birapchana River near Kruten’kiy Stream , 110 m a.s.l., backwashing of limestone shingles at river bank, 29 Jun. 1993, V.B. Semenov leg. ( AR) ; 1 ♂, 1 ♀, Putorana Highland, nr. Ayan Lake, Kapchug River, riverside ‘tundroid’, bog with mosses and Eriophorum sp., 11 Jun. 1983, K.Yu. Eskov leg. ( AR) ; 1 ♂, Yakutia, Vilyui River basin, Kempendyayi River upstream of Kempendyay Village , 5 Aug. 1988, V. Blagoderov & V. Zherikhin leg. ( AR) ; 1 ♂, Magadan Area, 3 km N of Shirokoye , 7 Jul. 1974, B.A. Korotyayev leg. ( AR + 1ex: IBPM) ; 1 ♀, Amur Area, Selemdzhinskiy District, near Fevral’sk, 268th km of Belogorsk–Fevral’sk road, Tikhiy rill, 275 m a.s.l., mosses and plant debris between sedge & gramineous tussocks among Alnus sp., Salix sp., Spiraea sp. with Sphagnum squarrosum, Sph. spp., etc., 8 Oct. 2008, A.B. Ryvkin leg. ( AR) ; 2 ♂♂, Amur Area, near Zeya Town , 4 Jun. 1978, V.V. Belov & S.A. Kurbatov leg. ( AR) ; 1 ♀, Amur Area, near Zeya Town , Gulik , 19 Oct. 1979, S.A. Serbenyuk leg. ( AR) ; 1 ♀, Amur Area, Selemdzhinskiy District, Norskiy Nature Reserve, Nora River basin, 2 km up-stream of Gryashchinskaya Mt., mosses and plant debris on small open swamp on high flood-plain: tussocks of Calamagrostis sp. and Carex spp. with Sphagnum ? girgensohnii , Sph. squarrosum, Sph. centrale, Sph. spp., Rubus arcticus, Convallaria keiskei , Salix sp., etc., 22 Aug. 2004, A.B. Ryvkin leg. ( AR) ; 1 ♀, Amur Area, Selemdzhinskiy District, Norskiy Nature Reserve, Nora River basin near Maltsevskiy cordon, E side of Maltsevskoye Lake, 210 m a.s.l., sweeping on Carex spp., Poaceae gen. spp. & motley grass, 1 Oct. 2008, E.M. Veselova & A.B. Ryvkin leg. ( AR) ; 1 ♂, Khabarovsk Territory, Jewish Autonomous Area, Obluchenskiy District, SE of Radde , Dichun River, about 2 km off river mouth, near water, 7 Aug. 1977, A.B. Ryvkin leg. ( AR) ; 2ex, [Khabarovsk Territory,] Ussuri River basin, Bikinskiy District, Birskoye , 27 Jun. 1958, O.N. Kabakov leg. ( ONK) ; 1 ex, same locality, 1 Jul. 1958, O.N. Kabakov leg. ( ONK) ; 1 ♀, Maritime Province, Spasskiy District, nr. Novoselskoye, rice field, t=27°, pH =5.8, 11 Aug. 1986, A. Shatrovskiy leg. ( AR) ; 1 ♂, Maritime Province, Spasskiy District, Yevseyevka , in stream, 17 Jul. 1976, E. Berlov leg., ‘ Stenus sp. ’, ‘ Stenus vinnulus Cas. , det. V. Puthz 2006’ ( ASh) .

CANADA: 1 ♀, Yukon Territory, Klokut Archeol. Site , 6 mi. N of Old Crow, 67°54’N 136°36’W, ex. shallow margin of small lake , 19 Jul. 1977, R.E. Morlan, J.V. Matthews, R.E. Roughley leg. (Yukon Refugium Project) ( UASM) ; 1 ♀, ‘N.W.T. - 21 m. e. Tuktoyaktuk. 17–21.vii. [19]71. D.M. Wood’, ‘ Stenus illotulus Puthz det. V. Puthz 1978’, ‘ob abw. vinnulus ?’, ‘ Eigentum CNC!’ <?> ( CNC) .

Remarks

Originally described from the USA. When revising Casey’ s heterogeneous type series, Puthz (1972a) designated the specimen from Cambridge, Massachusetts as the lectotype and placed S. confusoides Renkonen, 1935 , that had been known until then from Fennoscandia ( Renkonen 1936; Strand 1954; Palm 1961; Puthz 1965, 1970) and E Siberia ( Puthz 1967a: Chita Area: ‘Dorf Udotschnoje am Ingodazufluss’), in the synonymy of S. vinnulus . The specimens from Isle Royale, Lake Superior and Marquette, Michigan, were also attributed to the latter species, but the paralectotypes from White Fish Point were identified as S. brivioi Puthz , which was described in the same year ( Puthz 1972c). The same author cited E Siberian ‘Poppius-Funde von Ytyk-haja, Ust Aldan und Olekminsk’ for S. vinnulus in the same year ( Puthz 1972d). Campbell & Davies (1991), without providing material, reported the species for Alaska and most provinces of Canada, excluding British Columbia, Saskatchewan, Prince Edward Island, and Newfoundland (the first records for Alaska and the Yukon Territory had been provided by Fall 1926). Ryabukhin (1999) mentioned a single specimen of this species from the Magadan Area, Russia, based on my identifications from the IBPM collection (see Material examined above).