A new species of the Daphnia sinevi group (Crustacea: Cladocera: Daphniidae) from Sakhalin Island, Russian Far East

Zootaxa ◽  
2020 ◽  
Vol 4820 (3) ◽  
pp. 485-505
Author(s):  
PETR G. GARIBIAN ◽  
ALEXEY A. KOTOV
Keyword(s):  
New Species ◽  
Species Complex ◽  
Russian Far East ◽  
Far East ◽  
Relative Length ◽  
Species Group ◽  
Sakhalin Island ◽  
Island Populations ◽  
Daphnia Curvirostris ◽  
A New Species

Daphnia curvirostris species complex is a cladoceran group (Crustacea: Cladocera) with maximum diversity in Eastern Palearctic. To date, several representatives of this complex are known from the Russian Far East. Here we describe a new species of the Daphnia sinevi species group from water bodies of Sakhalin Island. Morphology of its parthenogenetic females is similar to that in D. sinevi from the continental part of Asian Eurasia. However, we found diagnostic traits of D. sakhalinensis sp.nov. in morphology of the second pecten on postabdominal claw, armature of seta 2 on exopodite III, proportions of setae 1/ and 2 length on exopodite V, relative length of male rostrum and structure of the second pecten of male postabdominal claw. This work contributes to our full revision of the D. curvirostris species complex. Separation between continental and Sakhalin populations of D. sinevi group probably happened in Pliocene (about 5 MA) when Sakhalin began to separate from the mainland. However, we cannot exclude a version that populations of D. sakhalinensis sp.nov. appeared as a result of colonization of Sakhalin from the continent and further independent evolution of the island populations.

A new species of Melita Leach (Amphipoda: Melitidae) from oligosaline waters of Russian Far East

Zootaxa ◽  
2003 ◽  
Vol 356 (1) ◽  
pp. 1 ◽  
Author(s):  
VJACHESLAV S. LABAY
Keyword(s):  
New Species ◽  
Russian Far East ◽  
Far East ◽  
Species Group ◽  
Dorsal Side ◽  
Sakhalin Island ◽  
Amphipod Species ◽  
A New Species

A new amphipod species, Melita nitidaformis sp. n., is described from oligosaline Tunaycha Lake of Sakhalin Island (Russian Far East). The new species belongs to the species group of Melita with spines on the dorsal side of urosome 2 (without teeth).

Baetis pentaphyllus sp. nov., a new species of mayfly (Ephemeroptera: Baetidae) from the Russian Far East

Zootaxa ◽  
2019 ◽  
Vol 4679 (2) ◽  
pp. 341-352
Author(s):  
TATIANA M. TIUNOVA ◽  
ALEXANDER A. SEMENCHENKO
Keyword(s):  
New Species ◽  
Sequence Data ◽  
Russian Far East ◽  
Far East ◽  
Species Group ◽  
Mitochondrial Coi ◽  
Sister Clade ◽  
Species Groups ◽  
Coi Sequences ◽  
A New Species

A new species, Baetis pentaphyllus sp. nov., is described on the basis of larvae from the Far East of Russia (type locality Bolshoi Garmakan River). Larvae of Baetis pentaphyllus sp. nov. may be distinguished from other Baetis species by the presence of only five pairs of tergalii on segments III–VII. The mitochondrial COI sequence obtained from the described species was compared with the data present in GeneBank and BOLD. The DNA barcodes allowed discrimination of B. pentaphyllus sp. nov. from other species of Baetis with available sequence data. The average interspecific K2P distances were 10–15%, which are values well above those associated with intraspecific variation. COI sequences as well as 36 morphological larval characters were analysed using Bayesian inference to relate the described species to the recognized species-groups of the Baetis genus. B. pentaphyllus sp. nov formed a sister clade to B. vardarensis + B. lutheri which belong to the Baetis lutheri species-group. 

scholarly journals New species and records of Stenus (Nestus) of the canaliculatus group, with the erection of a new species group (Insecta: Coleoptera: Staphylinidae: Steninae)

2012 ◽  
Author(s):  
Alexandr B. Ryvkin
Keyword(s):  
New Species ◽  
Russian Far East ◽  
Far East ◽  
Species Group ◽  
Tien Shan ◽  
Evolutionary Trends ◽  
Palaearctic Species ◽  
First Time ◽  
A New Species ◽  
The Russian Far East

The canaliculatus species group of Stenus (Nestus) is redefined. Four new Palaearctic species of the group are described and illustrated: S. (N.) alopex sp. nov. from the Putorana Highland and Taymyr Peninsula, Russia; S. (N.) canalis sp. nov. from SE Siberia and the Russian Far East; S. (N.) canosus sp. nov. from the Narat Mt Ridge, Chinese Tien Shan; S. (N.) delitor sp. nov. from C & SE Siberia. New distributional data as well as brief analyses of old records for fourteen species described earlier are provided from both Palaearctic and Nearctic material. S. (N.) milleporus Casey, 1884 (= sectilifer Casey, 1884) is revalidated as a species propria. S. (N.) sphaerops Casey, 1884 is redescribed; its aedeagus is figured for the first time; the aedeagus of S. (N.) caseyi Puthz, 1972 as well as aedeagi of eight previously described Palaearctic species are illustrated anew. A key for the identification of all the known Palaearctic species of the group is given. A morphology and ecology based analysis of the main evolutionary trends within the group is provided. A lectotype is designated for S. (N.) melanopus Marsham, 1802; its Siberian and NE European records are supposed to be erroneous; the monotypic melanopus species group is erected.

A new species of Sextonia Chevreux, 1920 (Crustacea: Amphipoda: Liljeborgiidae) from the Okhotsk Sea

Zootaxa ◽  
2017 ◽  
Vol 4353 (3) ◽  
pp. 506
Author(s):  
VJACHESLAV S. LABAY
Keyword(s):  
New Species ◽  
Russian Far East ◽  
Far East ◽  
Sakhalin Island ◽  
Amphipod Species ◽  
Okhotsk Sea ◽  
A New Species

A new amphipod species, Sextonia caecus sp. nov., from the shelf of northern Sakhalin Island (Russian Far East) is described. A key to the amphipod species of the genus Sextonia is given. 

Review of the Evagetes crassicornis species-group (Hymenoptera: Pompilidae), with description of new species

Zootaxa ◽  
2009 ◽  
Vol 2230 (1) ◽  
pp. 42-50
Author(s):  
ARKADY S. LELEJ ◽  
VALERY M. LOKTIONOV
Keyword(s):  
New Species ◽  
Russian Far East ◽  
Far East ◽  
Species Group ◽  
First Time ◽  
A New Species ◽  
The Russian Far East

The three species and two subspecies of the Evagetes crassicornis species-group are reviewed. A new species, Evagetes orientalis, sp. nov., is described and illustrated from the Russian Far East. A lectotype of Pompilus sahlbergi F. Morawitz 1893 is redescribed. Evagetes crassicornis crassicornis (Shuckard) is recorded for the first time from Ukraine, Georgia, Kazakhstan, and Alaska. A key is presented for both sexes of this species-group.

A new species of Rhithrogena Eaton, 1881 from the Far East of Russia with notes on this genus in this area (Ephemeroptera: Heptageniidae)

Zootaxa ◽  
2010 ◽  
Vol 2639 (1) ◽  
pp. 1
Author(s):  
TATIANA M. TIUNOVA
Keyword(s):  
New Species ◽  
Russian Far East ◽  
Far East ◽  
Species Group ◽  
Dorsal Margin ◽  
Far East Of Russia ◽  
The Far East ◽  
Far Eastern ◽  
A New Species ◽  
Eastern Species

Rhithrogena klugei sp. nov. (male, female and larva) are described from Far East of Russia. The Far Eastern species of Rhithrogena belong to two groups: lepnevae and sibirica. The species group sibirica is represented by the East Palaearctic species R. sibirica Brodsky 1930. The lepnevae species group includes R. lepnevae Brodsky 1930, R. bajkovae Sowa 1973 and R. klugei sp. nov. in the Far East and Siberia, and two species which can be found in the Russian Far East, R. piechockii Braasch 1977 from Mongolia, and R. ingalik Randolph and McCafferty 2005 from Alaska. The species group sibirica differs from lepnevae species group in that its larvae present a rounded projection on gills II–VI on the posterior-dorsal margin, whereas the imagines present a shoot at the base of the penis lobes. The larva of R. klugei sp. nov. differs from those of R. bajkovae and R. lepnevae in their form of gill I and in the ratio of the length to the width of gills III–IV. The male imago of the new species can be distinguished from others of the lepnevae species group by the absence of the latero-dorsoventral tooth on the penis lobes.

Baetis majus sp. nov., new species of mayfly (Ephemeroptera: Baetidae) from Far East of Russia

Zootaxa ◽  
2021 ◽  
Vol 4965 (3) ◽  
pp. 541-557
Author(s):  
TATIANA M. TIUNOVA ◽  
ALEXANDER A. SEMENCHENKO ◽  
XIAOLI TONG
Keyword(s):  
New Species ◽  
Russian Far East ◽  
Far East ◽  
Morphological Characters ◽  
Species Group ◽  
Morphological Studies ◽  
Nearest Neighbours ◽  
Differential Identification ◽  
Coi Sequences ◽  
Western Palaearctic

A new species, Baetis majus Tiunova sp. nov., is described and illustrated based on larvae and reared adults discovered in the Russian Far East. The differential identification of this species was determined by the characteristics of other representatives of the genus Baetis Leach, including subgenera Baetis Leach and Tenuibaetis Kang & Yang from Eastern and Western Palaearctic, Nearctic and Oriental regions. In addition to morphological studies, DNA barcoding of the described species with average intraspecific K2P distances to nearest neighbours is documented. We reconstructed the phylogenetic relationships of all available cytochrome c oxidase subunit I (COI) sequences of the subgenera of Baetis and Tenuibaetis from four regions. Bayesian analysis using 47 morphological characters additional to partial COI sequences did not allow to determine the species-group of the Baetis genus to which the described species belongs. 

A new species of Kamimuria (Plecoptera, Perlidae) from the Russian Far East

Zootaxa ◽  
2006 ◽  
Vol 1307 (1) ◽  
pp. 55 ◽  
Author(s):  
VALENTINA A. TESLENKO
Keyword(s):  
New Species ◽  
Russian Far East ◽  
Far East ◽  
Life Stages ◽  
First Time ◽  
A New Species ◽  
The Russian Far East

A new species of Kamimuria, K. lyubaretzi (Plecoptera, Perlidae) from the Russian Far East is described and illustrated for the first time. The description includes all life stages and both sexes. Distributional data are presented.

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