Oreodytes okulovi LAFER , 1988

Fery, H. & P. N, 2014, Notes on the identity of Oreodytes okulovi LAFER, 1988 (Coleoptera: Dytiscidae), Linzer biologische Beiträge 46 (2), pp. 1241-1254 : 1243

Oreodytes okulovi LAFER, 1988

Oreodytes okulovi LAFER, 1988: 52 (orig. descr.); 1989: 139, 242 (key); BALKE 1990: 18 (book review); KIREJTSHUK 2001: 542 (key); NILSSON 2001: 179 (cat.); 2014: 165 (cat.); NILSSON et al. 1999: 114; ERMAN & ERMAN 2002: 295; KUZHUGET et al. 2013: 285 (fauna); NILSSON & HÁJEK 2014: 37 (cat.).

T y p e l o c a l i t y: Russia, Far East, Primorsky Krai, Shkotovskoye Plateau; co-

ordinates ca. 44.17N 133.23E.

T y p e m a t e r i a l: The single female specimen (holotype) has been collected by A. Okulov in the Tyomny brook (headwaters of Arsenyevka river ) on 29.7.1979. The holotype is stored in the collection of the Institute of Biology and Soil Science , Far Eastern Branch , Russian Academy of Sciences, Vladivostok ( Russia; G.S. Lafer) (holotype not studied) .

M a t e r i a l s t u d i e d: 1, "Dal'ny Vostok [= Far East], Lazovsky zapovednik [= Lazovsky Nature Reserve], ur. [= urochishche = landscape unit] Benevskoye, 20.VIII.[1]984, leg. V. Gramma" [hw, in Russian], "coll. Zacharenko, Zoological Institute, St. Petersburg "; found together with a male of O. sanmarkii ; both originally mounted on a single pin (ZISP) (habitus and aedeagus of this specimen are illustrated in Figs 2 and 6-8 ). N o t e s: The collecting site has coordinates of ca. 43.1N 133.9E. 1, "Dal'ny Vostok [= Far East], Staraya pristan' [= Old pier], point No. 8, 840(466), 16.IX.[19]58" [hw, in Russian], "rivalis /Gyll/" [hw], "coll. Zacharenko, Zoological Institute, St. Petersburg " (ZISP). N o t e s: Two specimens of O. sanmarkii , also stored in ZISP, were found at the same locality, but on other dates. 1, "Dal'ny Vostok [= Far East]. 839/468 [?], Staraya pr. N 7 [?], gal'ka [= pebbles], gl. 10 sm [depth 10 cm], t° 8°[C], 16.IX.[19]58" [hw], " rivalis (Gyll) ." [hw], "coll. Zacharenko, Zoological Institute, St. Petersburg " (ZISP). 1, "Yevreyskaya AO [= Jewish Autonomous Oblast]. Dichun, r. Amur [Amur River] 130°45' E, bl. [= bliz = near] Radde 24.VIII.1978, Belov" [printed], "rivalis" [hw Belov], " Oreodytes okulovi Lafer, P. Petrov det. 2004" [printed], "Dept. Entomology, Lomonosov Moscow State University" [printed], " Oreodytes okulovi Lafer , det AN Nilsson-05" [printed]; found together with several O. sanmarkii (MPSU) . N o t e s: Dichun has co-ordinates 48.52N 130.74E; Radde has co-ordinates 48.59N 130.59E. 1, 1, " 3.9.2006 Russia, Tyva (Tuva), Ungesh River, stream, roiled, ca. 70 km SW Kyzyl, ca. 51.13N 93.75E, V. Zaika leg." (CHF, ZISP). N o t e s: The last two specimens and another one were reported by KUZHUGET et al. (2013) as " Oreodytes sp. aff. okulovi LAFER, 1988 ". C.N. KUZHUGET (Kyzyl, Tuva, Russia) kindly sent us some photos of the habitus and of the aedeagus of the third specimen recorded under this name. This specimen is a male from silt in Gnusny brook in the southern part of the valley of Lake Myun', ca. 120 km NEE Kyzyl (52.20N 96.00E), also collected by V. Zaika and stored in the Biodiversity and Geoecology Laboratory, Tuva Institute for Exploration of Natural Resources, Siberian Branch, Russian Academy of Sciences (Kyzyl). It is clear from the photos that the specimen also belongs to O. okulovi .

Figures

Figs 1-2. Habitus of (1) Oreodytes okulovi LAFER, 1988 and (2) O. sanmarkii sanmarkii (C.R. SAHLBERG, 1826) (both specimens from Lazovsky Nature Reserve, Russian Far East).

Figs 3-8. Oreodytes okulovi LAFER, 1988: (3) median lobe of aedeagus in ventral view, (4) median lobe in lateral view, (5) left paramere (lateral lobe); O. sanmarkii sanmarkii (C.R. SAHLBERG, 1826): (6) median lobe of aedeagus in ventral view, (7) median lobe in lateral view, (8) left paramere.