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

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. 

Zootaxa ◽  
2019 ◽  
Vol 4679 (2) ◽  
pp. 341-352
Author(s):  
TATIANA M. TIUNOVA ◽  
ALEXANDER A. SEMENCHENKO

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. 


Zootaxa ◽  
2019 ◽  
Vol 4661 (2) ◽  
pp. 256-270
Author(s):  
XIN SUN ◽  
YU. B. SHVEENKOVA ◽  
ZHIJING XIE ◽  
A. B. BABENKO

Three new species of the genus Oligaphorura are described from southwestern China (O. wanglangensis sp. nov.) and Russian Far East (O. ussurica sp. nov. and O. kedroviensis sp. nov.). The first species is most similar to O. inya (Weiner & Kaprus’, 2014) known from the Altai Mountains, and can be distinguished from the latter by larger body size and the number of ventral psx (00/000/121101m in O. wanglangensis sp. nov. vs 1/000/212101m in O. inya). The other two species, together with O. montana Weiner, 1994, O. pseudomontana Sun & Wu, 2012 and O. chankaensis Sun & Wu, 2012, form a distinct species-group characterized by the presence of 4+4 pso on antennal base and full-sized anal spines. Both these new species differ from the known congeners of this group by having only 2+2 posterior pso on the head. O. ussurica sp. nov. and O. kedroviensis sp. nov. can be separated due to different number of abdominal pso, i.e. 5(6)5554 in the former vs 44454 in the latter species.


Author(s):  
Alexandr B. Ryvkin

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.


Zootaxa ◽  
2010 ◽  
Vol 2335 (1) ◽  
pp. 1 ◽  
Author(s):  
MAXIM YU. PROSHCHALYKIN ◽  
ARKADY S. LELEJ

The twelve species and two subspecies of Nomada roberjeotiana species-group from Russia are reviewed. Two new species, Nomada mitaii sp. nov. (Russia, Mongolia), and N. setteri sp. nov. (Russian Far East) are described and illustrated. A female lectotype is designated for Nomada palmeni Morawitz 1888. Nomada esana Tsuneki 1973 and N. hakusana hakusana Tsuneki 1973 are recorded for the first time from Russia. Nomada rufipes Fabricius 1793 is newly recorded from the Russian Far East and Kazakhstan, and N. roberjeotiana roberjeotiana is newly recorded from Mongolia. The distribution data for other species are enlarged. An identification key is presented for both sexes of this species-group.


2020 ◽  
Vol 419 ◽  
pp. 1-8
Author(s):  
D.R. Kasparyan ◽  

Two new species, Erromenus atrator sp. n. (Primorskiy Territory) and E. tereshkini sp. n. (Zabaikalskiy Territory) are described in the tribe Trypho¬nini (Ichneumonidae). Both new species differ from other congeners by almost completely black body color and a very wide dorsal area at the base of the pro-podeum, formed by a fused basal area and areola, and by the distinctly raised upper edge of the antennal sockets. In the last character, in the structure of the clypeal foveae and of the ovipositor, the new species are evolutionarily close to the Holarctic species E. zonarius (Gravenhorst, 1820). A new subgroup of species zonarius in the marginatus species group is proposed. Key to black-colored species of zonarius species-subgroup of the Eastern Palaearctic and related species is given.


Zootaxa ◽  
2009 ◽  
Vol 2230 (1) ◽  
pp. 42-50
Author(s):  
ARKADY S. LELEJ ◽  
VALERY M. LOKTIONOV

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.


Zootaxa ◽  
2003 ◽  
Vol 356 (1) ◽  
pp. 1 ◽  
Author(s):  
VJACHESLAV S. LABAY

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).


Zootaxa ◽  
2017 ◽  
Vol 4300 (1) ◽  
pp. 125 ◽  
Author(s):  
SERGEY K. RYNDEVICH ◽  
ALEXANDER A. PROKIN

Two new species, Cercyon retius sp. nov. and C. primoricus sp. nov., both belonging to the subgenus Clinocercyon, are described from the Russian Far East. A key to the identification of the six known Palearctic species of the subgenus is given. Both new species are illustrated by photographs of habitus and some morphological characters and by drawings of male genitalia. Within the subgenus Clinocercyon, the new species are most similar to C. conjiciens (Walker) and to the two Japanese species (C. aequalis Sharp and C. rubicundus Sharp). With the inclusion of these two new species, the fauna of Cercyon in Russia now comprises 47 species from 5 subgenera. 


Zootaxa ◽  
2020 ◽  
Vol 4786 (2) ◽  
pp. 151-175
Author(s):  
KYU-TEK PARK ◽  
JUN-MO KOO ◽  
DAVID J. L. AGASSIZ ◽  
LEIF AARVIK

The genus Dragmatucha Meyrick is reviewed and 11 species of a total of 13 are described as new. The new species originate from the Democratic Republic of Congo, Ghana, Kenya, and Uganda. Based on morphological characters, especially the color pattern of both wings, the genus is divided into two species-groups: the proaula species-group with five species (D. proaula Meyrick, 1908; D. galbinea Park, sp. nov.; D. kabarolensis Park, sp. nov.; D. saltualis Park, sp. nov. and D. vittatella Park, sp. nov.) and the hispidula species-group with eight species (D. hispidula Park, 2018; D. goniotes Park, sp. nov.; D. cochliana Park, sp. nov.; D. pedalis Park, sp. nov.; D. ghanaensis Park, sp. nov.; D. crinifrutalis Park, sp. nov.; D. dizostera Park, sp. nov. and D. kakumensis Park, sp. nov.). Adults and male genitalia of all new species are illustrated, but female genitalia are provided only for D. ghanaensis Park, sp. nov. and D. kakumensis Park, sp. nov. When fresh material was available, the analysis of COI sequences was undertaken. 


Zootaxa ◽  
2020 ◽  
Vol 4820 (3) ◽  
pp. 485-505
Author(s):  
PETR G. GARIBIAN ◽  
ALEXEY A. KOTOV

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.


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