scholarly journals Partial revision of the neustonic genus Scapholeberis Schoedler, 1858 (Crustacea: Cladocera): decoding of the barcoding results

PeerJ ◽  
2020 ◽  
Vol 8 ◽  
pp. e10410
Author(s):  
Petr G. Garibian ◽  
Anna N. Neretina ◽  
Derek J. Taylor ◽  
Alexey A. Kotov
Keyword(s):  
Mitochondrial Dna ◽  
Dna Sequences ◽  
Russian Far East ◽  
Far East ◽  
Species Group ◽  
The Status ◽  
Species Groups ◽  
The Republic ◽  
Partial Revision ◽  
A New Species

Water fleas (Crustacea: Cladocera) are among the most intensively studied freshwater invertebrates. However, ecologically important daphniids that live on the surface layer (neuston) remain taxonomically confused. Here we attempt to reconcile genetic and morphological information for the neustonic genus Scapholeberis Schoedler, 1858 (Cladocera: Daphniidae) and present the first revision of the Scapholeberis kingii species group. We analyzed new and existing mitochondrial DNA sequences (сytochrome C oxidase subunit I gene region) together with morphology for all but one of the known species of the neustonic daphniids. Morphological comparisons of available populations, belonging to the Scapholeberis kingii species group from several Australian, Asian and African localities, revealed, that they are almost identical according to parthenogenetic females. However, Australian populations can be reliably distinguished from Asian ones based on the morphology of gamogenetic females. Mitochondrial DNA data analyses revealed divergent lineages (>17% for the DNA barcoding COI region) for the three different species (Australia, Asia and Africa). Based on this set of data, we redescribed S. kingii Sars, 1888 from Australia, its terra typica, and described a new species, S. smirnovi sp.nov. from the Russian Far East, Korea and Japan. The status of populations from Ethiopia and the Republic of South Africa remained unclear, because in the African material and the putative type material, we found only parthenogenetic females. Our results provide an integrative revision of the S. kingii species group and improve the taxonomic scaffold used for barcoding and genomics for the remaining species groups in the daphniid genus Scapholeberis.

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. 

Review of species of the genus Cercyon of Russia and adjacent regions. VI. Subgenus Cercyon, the C.shinanensis group (Coleoptera: Hydrophilidae)

2019 ◽  
Vol 28 (2) ◽  
pp. 258-266 ◽  
Author(s):  
S.K. Ryndevich ◽  
H. Hoshina ◽  
A.A. Prokin
Keyword(s):  
Russian Far East ◽  
Far East ◽  
Species Group ◽  
Palaearctic Species ◽  
Diagnostic Features ◽  
Kunashir Island ◽  
Species Groups ◽  
The Russian Far East

The Cercyon shinanensis species group with two included species is erected within the nominotypical subgenus of Cercyon Leach, 1817. This group is compared with other Palaearctic species groups of Cercyon s. str. The little-known C. shinanensis Nakane, 1965 from Japan (Honshu) is redescribed and its diagnostic features are given. Cercyon sundukovi sp. nov. is described from the Russian Far East (Kunashir Island).

Discovery of New Genera Challenges the Subtribal Classification of Tok-Tok Beetles (Coleoptera: Tenebrionidae: Sepidiini)

2021 ◽  
Vol 5 (2) ◽  
Author(s):  
Olivia M Gearner ◽  
Marcin J Kamiński ◽  
Kojun Kanda ◽  
Kali Swichtenberg ◽  
Aaron D Smith
Keyword(s):  
Dna Sequences ◽  
Species Group ◽  
Phylogenetic Placement ◽  
Darkling Beetles ◽  
Species Groups ◽  
Taxonomic Groups ◽  
Inference Methods ◽  
A New Species ◽  
Coleoptera Tenebrionidae

Abstract Sepidiini is a speciose tribe of desert-inhabiting darkling beetles, which contains a number of poorly defined taxonomic groups and is in need of revision at all taxonomic levels. In this study, two previously unrecognized lineages were discovered, based on morphological traits, among the extremely speciose genera Psammodes Kirby, 1819 (164 species and subspecies) and Ocnodes Fåhraeus, 1870 (144 species and subspecies), namely the Psammodes spinosus species-group and Ocnodes humeralis species-group. In order to test their phylogenetic placement, a phylogeny of the tribe was reconstructed based on analyses of DNA sequences from six nonoverlapping genetic loci (CAD, wg, COI JP, COI BC, COII, and 28S) using Bayesian and maximum likelihood inference methods. The aforementioned, morphologically defined, species-groups were recovered as distinct and well-supported lineages within Molurina + Phanerotomeina and are interpreted as independent genera, respectively, Tibiocnodes Gearner & Kamiński gen. nov. and Tuberocnodes Gearner & Kamiński gen. nov. A new species, Tuberocnodes synhimboides Gearner & Kamiński sp. nov., is also described. Furthermore, as the recovered phylogenetic placement of Tibiocnodes and Tuberocnodes undermines the monophyly of Molurina and Phanerotomeina, an analysis of the available diagnostic characters for those subtribes is also performed. As a consequence, Phanerotomeina is considered as a synonym of the newly redefined Molurina sens. nov. Finally, spectrograms of vibrations produced by substrate tapping of two Molurina species, Toktokkus vialis (Burchell, 1822) and T. synhimboides, are presented.

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.

scholarly journals A new species of Caecilia (Gymnophiona, Caeciliidae) from the Magdalena valley region of Colombia

ZooKeys ◽  
2019 ◽  
Vol 884 ◽  
pp. 135-157 ◽  
Author(s):  
Andrés R. Acosta-Galvis ◽  
Mauricio Torres ◽  
Paola Pulido-Santacruz
Keyword(s):  
Mitochondrial Dna ◽  
New Species ◽  
Body Length ◽  
Dna Sequences ◽  
Phylogenetic Position ◽  
The Family ◽  
The Status ◽  
A New Species

A new species of the genus Caecilia (Caeciliidae) from the western foothills of the Serranía de los Yariguíes in Colombia is described. Caecilia pulchraserranasp. nov. is similar to C. degenerata and C. corpulenta but differs from these species in having fewer primary annular grooves and a shorter body length. With this new species, the currently recognized species in the genus are increased to 35. Mitochondrial DNA sequences, including newly sequenced terminals representing two additional, previously unanalyzed species, corroborate the phylogenetic position of the new species within Caecilia and the monophyly of the genus. This analysis also included newly sequenced terminals of Epicrionops aff. parkeri (Rhinatrematidae) and trans-Andean Microcaecilia nicefori (Siphonopidae). Evidence was found for the non-monophyly of the family Siphonopidae and the siphonopid genera Microcaecilia and Siphonops. The implications of these results for caecilian systematics are discussed and the status of the trans-Andean populations of Caecilia degenerata is commented upon.

New species in the Gymnopilus junonius group (Basidiomycota: Agaricales)

Botany ◽  
2020 ◽  
Vol 98 (6) ◽  
pp. 293-315
Author(s):  
R. Greg Thorn ◽  
David W. Malloch ◽  
Irja Saar ◽  
Yves Lamoureux ◽  
Eiji Nagasawa ◽  
...  
Keyword(s):  
New Species ◽  
North America ◽  
Dna Sequences ◽  
Russian Far East ◽  
Far East ◽  
Ribosomal Subunit ◽  
Large Ribosomal Subunit ◽  
Internal Transcribed Spacer Region ◽  
A New Species ◽  
The Russian Far East

Mushrooms named Gymnopilus spectabilis and G. junonius have been reported widely in North America on both dead hardwood or dead or living conifers. Based on DNA sequences of the internal transcribed spacer region (ITS) and large ribosomal subunit (LSU), we found that although Gymnopilus junonius (= G. spectabilis s. auct.) is widespread in Europe, South America, and Australia, none of the limited sequences available from North America represent this species. We report five species of this group from North America, including three previously described species, G. luteus, G. subspectabilis, and G. ventricosus, and two new species, Gymnopilus voitkii and Gymnopilus speciosissimus. We recognize a sister species to G. luteus, based on sequences previously reported as G. spectabilis from China, Japan, and the Russian Far East, but, lacking material to describe it as a new species, we give it an informal clade name, /sororiluteus. Another new species in this complex is described from Japan, as Gymnopilus orientispectabilis. Species in this group may be distinguished by their ITS sequences as well as by macro- and micromorphology, substrate, and geography.

A new Mexican species of Onthophagus Latreille (Coleoptera: Scarabaeidae: Scarabaeinae), with a revised key to the species of the O. dicranius species complex

Zootaxa ◽  
2019 ◽  
Vol 4695 (6) ◽  
pp. 586-592 ◽  
Author(s):  
LEONARDO DELGADO ◽  
EDER F. MORA-AGUILAR
Keyword(s):  
Species Complex ◽  
New World ◽  
Species Group ◽  
Species List ◽  
New Mexican ◽  
The Status ◽  
Phylogenetic Framework ◽  
Species Groups ◽  
Mexican Species ◽  
A New Species

New World species of the genus Onthophagus Latreille (Coleoptera: Scarabaeidae: Scarabaeinae) have been classified in different ways, all of them without a phylogenetic framework. For instance, Boucomont (1932) separated them in 13 groups of species, but Zunino & Halffter (1988; 1997) only recognize five species groups. Howden & Gill (1993) add the O. dicranius Bates and O. mirabilis Bates species groups, and Kohlmann & Solís (2001) added the O. gazellinus Bates species group. Also, over the years, groups, complexes, and sets of species have been defined using different criteria not even comparable each other. Two of these groupings are the O. dicranius and O. mirabilis species groups, which were firstly separated from the O. clypeatus Blanchard species group (sensu Zunino & Halffter 1981, 1997) by Howden & Gill (1993). After, Kohlmann & Solís (2001) later merged both groups under the O. dicranius species group. Finally, Génier (2017) gives a conceptual framework for species groups and complexes, thus assigning the status of species complex to the two previous species groups, and integrating them in the O. dicranius species group. Herein, we describe a new species of the O. dicranius species complex, update the species list of this complex, and present a revised key to separate these species. 

scholarly journals Hypotheses from mitochondrial DNA: congruence and conflict between DNA sequences and morphology in Dolichopodinae systematics (Diptera:Dolichopodidae)

2010 ◽  
Vol 24 (1) ◽  
pp. 32 ◽  
Author(s):  
Marc Pollet ◽  
Christoph Germann ◽  
Samuel Tanner ◽  
Marco Valerio Bernasconi
Keyword(s):  
Phylogenetic Analysis ◽  
Mitochondrial Dna ◽  
Molecular Analysis ◽  
Dna Sequences ◽  
Morphological Characters ◽  
Species Group ◽  
Data Matrix ◽  
Cyt B ◽  
Molecular Phylogenetic ◽  
Species Groups

The molecular phylogeny of the subfamily Dolichopodinae (Diptera : Dolichopodidae) is reconstructed based on 79 species of 7 dolichopodine genera as ingroup, and 10 non-dolichopodine species from different genera as outgroup. A Bayesian analysis based on a mitochondrial DNA dataset consisting of 1702 characters (COI : 810; 12S : 366; 16S : 526) was carried out. Genital and non-genital morphological characters from a hitherto unpublished data matrix (based on 57 Dolichopodidae species) were used to explain and support the lineages hypothesised by our molecular phylogenetic analysis. The monophyly of the subfamily Dolichopodinae, and of the genera Dolichopus and Gymnopternus, was confirmed. The molecular analysis yielded nine species groups in Dolichopus that were proposed in previous studies using COI and Cyt-b. No evidence was found to support a clade including Dolichopus, Ethiromyia, and Gymnopternus. The genus Hercostomus proved polyphyletic with respect to Poecilobothrus, Sybistroma, and Gymnopternus. The following lineages were represented by strongly supported clades: Hercostomus germanus species group, H. vivax species group, H. nigrilamellatus species group, H. plagiatus species group, H. longiventris species group, H. fulvicaudis species group, and Poecilobothrus, Gymnopternus, Tachytrechus and Sybistroma (including Hercostomus nanus and H. parvilamellatus). Two clades that were previously established on the basis of morphology were confirmed in our phylogenetic analysis: (i) Poecilobothrus and the flower-feeding Hercostomus germanus species group, and (ii) the H. longiventris lineage and Sybistroma. In most cases, the groups identified in the molecular analysis could be supported and explained by morphological characters. Species of the Hercostomus germanus species group, Poecilobothrus, the Hercostomus longiventris species group, and a Sybistroma subclade have a similar microhabitat affinity.

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 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).

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