Two new species of Atlantoscia Ferrara & Taiti, 1981 (Isopoda: Oniscidea: Philosciidae) from southern Brazil described in the light of integrative taxonomy

Zootaxa ◽  
2018 ◽  
Vol 4482 (3) ◽  
pp. 551 ◽  
Author(s):  
BIANCA LAÍS ZIMMERMANN ◽  
IVANKLIN SOARES CAMPOS-FILHO ◽  
GIOVANNA MONTICELLI CARDOSO ◽  
SANDRO SANTOS ◽  
JOSÉ OTÁVIO AGUIAR ◽  
...  
Keyword(s):  
New Species ◽  
Comparative Morphology ◽  
Molecular Data ◽  
Integrative Taxonomy ◽  
Southern Brazil ◽  
Terrestrial Isopods ◽  
Species Discovery ◽  
Mitochondrial Coi ◽  
Taxonomic Impediment ◽  
Two New Species

The use of molecular data in association with classical taxonomy has helped to alleviate the taxonomic impediment through the discovery, delimitation and description of new species. Terrestrial isopods are the largest suborder of Isopoda; however, there are very few active taxonomists in this group and a representative part of the terrestrial isopods world diversity remains unexplored. The genus Atlantoscia comprises five species in which diagnostic characters are few and show subtle differences among the species. The objective of this study was to delimit and describe two new species of the genus Atlantoscia from southern Brazil by using traditional taxonomy coupled with genetic information. Specimens were analyzed morphologically and by the aid of two molecular markers, mitochondrial COI and nuclear 18S rRNA. The validity of the new species Atlantoscia antennamaculata sp. nov. and Atlantoscia australis sp. nov. was corroborated, unambiguously, by morphological approach, phylogenetic analysis and species delimitation methods. Our study reinforces the fact that, despite the undeniable importance of comparative morphology in species discovery, new methods and data, particularly molecular ones, are becoming prominent and an integrative part of the taxonomy practice. 

Description of two new species of Rhamphus related to R. oxyacanthae (Curculionidae, Curculioninae, Rhamphini) from Italy based on a morphological study supported by molecular data

Zootaxa ◽  
2021 ◽  
Vol 4995 (1) ◽  
pp. 111-128
Author(s):  
LUCIANO DIOTTI ◽  
ROBERTO CALDARA ◽  
IVO TOŠEVSKI
Keyword(s):  
New Species ◽  
Morphological Study ◽  
Host Plants ◽  
Molecular Study ◽  
Morphological Characters ◽  
Molecular Data ◽  
Integrative Taxonomy ◽  
The Other ◽  
Distribution Data ◽  
Two New Species

Two new species of the weevil genus Rhamphus from Italy are herein described: R. bavierai n. sp. (Sicily) and R. hampsicora n. sp. (Sardinia). Both are morphologically and from a molecular perspective close to R. oxyacanthae (Marsham, 1802) and R. monzinii Pesarini & Diotti, 2012. Aside from a diagnostic description and a synoptic key, distribution data and notes on the host plants of the four species are reported. Whereas R. monzinii can be distinguished by several morphological characters, the other three species are morphologically very similar to each other and separable only by the combination of a few subtle characters. On the contrary, a preliminary molecular study revealed substantial divergences of mtCOI from 6.2 to 14.9% between the species, confirming the importance of an integrative taxonomy.  

scholarly journals Integrative taxonomy reveals two new cryptic species of Hyphessobrycon Durbin, 1908 (Teleostei: Characidae) from the Maracaçumé and middle Tocantins River basins, Eastern Amazon region

2020 ◽  
Vol 723 ◽  
pp. 77-107
Author(s):  
Erick Cristofore Guimarães ◽  
Pâmella Silva De Brito ◽  
Pedro Henrique Negreiros Bragança ◽  
Jadson Pinheiro Santos ◽  
Axel Makay Katz ◽  
...  
Keyword(s):  
New Species ◽  
Mitochondrial Gene ◽  
Morphological Characters ◽  
Molecular Data ◽  
Color Pattern ◽  
Integrative Taxonomy ◽  
The Body ◽  
Dorsal Fin ◽  
Two New Species ◽  
Molecular Phylogenetic

Two new species, Hyphessobrycon frickei Guimarães, Brito, Bragança, Katz & Ottoni sp. nov. and H. geryi Guimarães, Brito, Bragança, Katz & Ottoni sp. nov., are herein described, based on seven different and independent species delimitation methods, and on molecular and morphological characters, making the hypothesis of these new species supported from an integrative taxonomy perspective. They belong to the “Rosy tetra” clade, which is mainly characterized by the presence of a dark brown or black blotch on the dorsal fin and the absence of a midlateral stripe on the body. These two new species are distinguished from the other members of this clade mainly by the arrangement, shape and color pattern of humeral and dorsal-fin spots, as well as by other characters related to scale counts and body pigmentation. The placement of the new species within the “Rosy tetra” clade was based on the combination of morphological character states mentioned above and corroborated by a molecular phylogenetic analysis using the mitochondrial gene cytochrome oxidase subunit 1. In addition, a new clade (here termed Hyphessobrycon copelandi clade) within the “Rosy tetra” clade is proposed based on molecular data, comprising H. copelandi, H. frickei sp. nov., H. geryi sp. nov. and a still undescribed species. Our results corroborate the occurrence of hidden species within the “Rosy tetra” clade, as suggested by previous studies.

scholarly journals A revision of “blanket-hermit crabs” of the genus Paguropsis Henderson, 1888, with the description of a new genus and five new species (Crustacea, Anomura, Diogenidae)

ZooKeys ◽  
2018 ◽  
Vol 752 ◽  
pp. 17-97 ◽  
Author(s):  
Rafael Lemaitre ◽  
Dwi Listyo Rahayu ◽  
Tomoyuki Komai
Keyword(s):  
New Species ◽  
New Genus ◽  
Molecular Data ◽  
The Philippines ◽  
Junior Synonym ◽  
Hermit Crabs ◽  
Valid Species ◽  
Species Discovery ◽  
Mitochondrial Coi ◽  
Length Width

For 130 years the diogenid genusPaguropsisHenderson, 1888 was considered monotypic for an unusual species,P.typicaHenderson, 1888, described from the Philippines and seldom reported since. Although scantly studied, this species is known to live in striking symbiosis with a colonial sea anemone that the hermit can stretch back and forth like a blanket over its cephalic shield and part of cephalothoracic appendages, and thus the common name “blanket-crab”. During a study of paguroid collections obtained during recent French-sponsored biodiversity campaigns in the Indo-West Pacific, numerous specimens assignable toPaguropsiswere encountered. Analysis and comparison with types and other historical specimens deposited in various museums revealed the existence of five undescribed species. Discovery of these new species, together with the observation of anatomical characters previously undocumented or poorly described, including coloration, required a revision of the genusPaguropsis. The nameChlaenopagurusandersoniAlcock & McArdle, 1901, considered by Alcock (1905) a junior synonym ofP.typica, proved to be a valid species and is resurrected asP.andersoni(Alcock, 1899). In two of the new species, the shape of the gills, length/width of exopod of maxilliped 3, width and shape of sternite XI (of pereopods 3), and armature of the dactyls and fixed fingers of the chelate pereopods 4, were found to be characters so markedly different fromP.typicaand other species discovered that a new genus for them,Paguropsinagen. n., is justified. As result, the genusPaguropsisis found to contain five species:P.typica,P.andersoni,P.confusasp. n.,P.gigassp. n., andP.laciniasp. n.Herein,Paguropsinagen. n., is proposed and diagnosed for two new species,P.pistillatagen. et sp. n., andP.inermisgen. et sp. n.;Paguropsisis redefined,P.typicaand its previously believed junior synonym,P.andersoni, are redescribed. All species are illustrated, and color photographs provided. Also included are a summary of the biogeography of the two genera and all species; remarks on the significance of the unusual morphology; and remarks on knowledge of the symbiotic anemones used by the species. To complement the morphological descriptions and assist in future population and phylogenetic investigations, molecular data for mitochondrial COI barcode region and partial sequences of 12S and 16S rRNA are reported. A preliminary phylogenetic analysis using molecular data distinctly shows support for the separation of the species into two clades, one with all five species ofPaguropsis, and another with the two speciesPaguropsinagen. n.

A new species of Aegla Leach, 1820 (Crustacea, Anomura) from the Iguaçu River basin, Brazil

Zootaxa ◽  
2018 ◽  
Vol 4527 (3) ◽  
pp. 335 ◽  
Author(s):  
FERNANDA POLLI PÁEZ ◽  
INGRID COSTA MARÇAL ◽  
LENICE SOUZA-SHIBATTA ◽  
RAFAEL AUGUSTO GREGATI ◽  
SILVIA HELENA SOFIA ◽  
...  
Keyword(s):  
New Species ◽  
River Basin ◽  
Morphological Characteristics ◽  
Molecular Data ◽  
Southern Brazil ◽  
Mitochondrial Coi ◽  
Interspecific Distance ◽  
Morphological And Molecular Data ◽  
A New Species ◽  
Iguaçu River

A new species of aeglid crab, Aegla okora n. sp., is described. This species was found in the Iguaçu River basin in Paraná state, southern Brazil. Aegla okora n. sp. was discriminated based on morphological and molecular data (mitochondrial COI). Morphologically, the new species differs from congeners of the same river basin by the presence of a trapezoidal areola and the ventromesial border of the ischium having three tubercles, besides other exclusive additional morphological characteristics. Molecular results demonstrated that there is no overlap between the intraspecific distances of Aegla okora n. sp. and the interspecific distance of other species of Aegla added to the analysis, confirming the separation of species and increasing the known diversity of the Iguaçu River basin. 

Integrative taxonomy of Hemimycale (Hymedesmiidae: Poecilosclerida: Demospongiae) from Southeastern Brazil, with the description of two new species

Zootaxa ◽  
2018 ◽  
Vol 4442 (1) ◽  
pp. 137-152
Author(s):  
LARISSA HUGUENIN ◽  
SULA SALANI ◽  
MAIRA F. LOPES ◽  
RODOLPHO M. ALBANO ◽  
EDUARDO HAJDU ◽  
...  
Keyword(s):  
New Species ◽  
Molecular Data ◽  
Integrative Taxonomy ◽  
Southeastern Brazil ◽  
Morphological Identification ◽  
Two New Species ◽  
Anatomical Characters ◽  
Coi Sequences ◽  
Morphological And Molecular Data ◽  
Reddish Orange

Two new species of Hemimycale from Southeastern Brazil are described in this study with the use of morphological and molecular data. Hemimycale oxeata sp. nov. is orange salmon colored in life and has unique oxeote like tornote spicules in addition to the typical (subtylo-)strongyles of the genus. Hemimycale ceadensis sp. nov. is reddish orange in life and has raised, tiny pore sieves, and subtylostrongyles with asymmetrical ends and raphides as microscleres. The diagnosis of the genus Hemimycale was slightly modified for the inclusion of the new species. Maximum-Likelihood analyses of 18S rRNA and COI sequences resulted in the clustering of both new species with the type species of the genus, thus confirming our morphological identification. The value of anatomical characters of pore sieves for diagnosing species and the genus is discussed. A key for species identification is also furnished. 

Molecular phylogenetic analysis and comparative morphology resolve two new species of olive-tree soil related dagger nematodes of the genus Xiphinema (Dorylaimida : Longidoridae) from Spain

2016 ◽  
Vol 30 (6) ◽  
pp. 547 ◽  
Author(s):  
Antonio Archidona-Yuste ◽  
Juan A. Navas-Cortés ◽  
Carolina Cantalapiedra-Navarrete ◽  
Juan E. Palomares-Rius ◽  
Pablo Castillo
Keyword(s):  
New Species ◽  
Iberian Peninsula ◽  
Olive Tree ◽  
Comparative Morphology ◽  
Integrative Taxonomy ◽  
Species Discrimination ◽  
Root Cells ◽  
Two New Species ◽  
Molecular Phylogenetic ◽  
Olive Trees

The genus Xiphinema constitutes a large group of ~275 species of polyphagous, plant-ectoparasitic nematodes that are distributed almost worldwide. Some species affect agricultural crops by feeding directly on root cells as well as by transmitting nepoviruses. Despite their agricultural importance, species discrimination in Xiphinema is difficult, leading to potential misidentification. Integrative taxonomy, based on the combination of molecular analyses and morphology, constitutes a new insight into Xiphinema species identification. In this study we describe two new species of Xiphinema from the Iberian Peninsula (X. macrodora, sp. nov. and X. oleae, sp. nov.) associated with cultivated and wild olive trees. Both species have specific rRNA sequences. Morphologically, Xiphinema macrodora, sp. nov. is characterised by a very long body (7.2–8.7 mm), a very long odontostyle and odontophore (190–206 and 105–120 µm, respectively), and a well developed pseudo-Z-organ, comprising 8 to 12 sclerotised bodies. Xiphinema oleae, sp. nov. is characterised by an odontostyle and an odontophore 136–149 and 65–80 µm long, respectively, and a well developed Z-organ with refractive inclusions (3–5), variable in shape. Additionally, X. macrodora, sp. nov. has the longest body size, and the longest odontostyle and odontophore of any Xiphinema, whereas X. oleae, sp. nov. is the first species with a well developed Z-organ from the Iberian Peninsula. http://zoobank.org/urn:lsid:zoobank.org:pub:E4CE8711-22EF-40E4-9D39-6FE962F25225

scholarly journals An Integrative Study on Asphondylia spp. (Diptera: Cecidomyiidae), Causing Flower Galls on Lamiaceae, with Description, Phenology, and Associated Fungi of Two New Species

Insects ◽  
2021 ◽  
Vol 12 (11) ◽  
pp. 958
Author(s):  
Umberto Bernardo ◽  
Francesco Nugnes ◽  
Simona Gargiulo ◽  
Rosario Nicoletti ◽  
Andrea Becchimanzi ◽  
...  
Keyword(s):  
New Species ◽  
Host Plants ◽  
Molecular Data ◽  
Botryosphaeria Dothidea ◽  
Nuclear Markers ◽  
Gall Midges ◽  
Mitochondrial Coi ◽  
Two New Species ◽  
Morphological Approach ◽  
Integrative Study

An integrative study on some species of Asphondylia was carried out. Two species of gall midges from Italy, Asphondylia rivelloi sp. nov. and Asphondylia micromeriae sp. nov. (Diptera: Cecidomyiidae), causing flower galls respectively on Clinopodium vulgare and Micromeria graeca (Lamiaceae), are described and illustrated. The characteristics of each developmental stage and induced galls are described, which allowed the discrimination of these new species in the complex of Asphondylia developing on Lamiaceae plants. Molecular data based on sequencing both nuclear (ITS2 and 28S-D2) and mitochondrial (COI) genes are also provided in support of this discrimination. Phylogeny based on nuclear markers is consistent with the new species, whereas COI phylogeny suggests introgression occurring between the two species. However, these species can also be easily identified using a morphological approach. Phenology of host plants and gall midges are described, and some peculiar characteristics allow the complete and confident discrimination and revision of the treated species. Gall-associated fungi were identified as Botryosphaeria dothidea,Alternaria spp., and Cladosporium spp.

scholarly journals The discovery of Scutovertex ianus sp. nov. (Acari, Oribatida) – a combined approach of comparative morphology, morphometry and molecular data

2010 ◽  
Vol 79 (1) ◽  
pp. 39-55
Author(s):  
Tobias Pfingstl ◽  
Sylvia Schäffer ◽  
Ernst Ebermann ◽  
Günther Krisper
Keyword(s):  
New Species ◽  
Oribatid Mite ◽  
Intraspecific Variability ◽  
Comparative Morphology ◽  
Molecular Data ◽  
Mite Species ◽  
Coi Gene ◽  
Separate Species ◽  
Mitochondrial Coi ◽  
Molecular Phylogenetic

Based on morphological, morphometric and genetic data Scutovertex ianus sp. nov. is described as a new oribatid mite species. The traditional comparison with the morphologically most similar congeneric S. minutus and S. sculptus demonstrated that the new species shares certain characters with both species, but can be clearly identified by indistinct cuticular notogastral foveae in combination with short spiniform notogastral setae. Furthermore the eggs of S. ianus exhibit a different fine structure of the exochorion. The morphometric analysis of 16 continuous morphological variables separated the three species, S. minutus, S. sculptus and S. ianus with a certain overlap indicating minor size and shape differences in overall morphology. The molecular phylogenetic analysis of mitochondrial COI gene sequences supported the monophyly of all three investigated species and confirmed S. ianus as separate species with high bootstrap values. Each performed analysis approves the discreteness of S. ianus and the results contradict the formerly supposed large intraspecific variability of the representatives of the genus Scutovertex. The records of S. ianus are as yet restricted to the Eastern part of Austria and to one location in Germany, but findings of intermediary Scutovertex specimens from other European countries may refer to this new species.

Two new species of Margyricarpus (Rosaceae, Sanguisorbeae) from high-elevation grasslands in southern Brazil, and other notes on the genus Margyricarpus

Phytotaxa ◽  
2021 ◽  
Vol 496 (3) ◽  
pp. 281-293
Author(s):  
LUÍS A. FUNEZ ◽  
GUSTAVO HASSEMER ◽  
NIVALDO PERONI ◽  
ELISANDRO R. DRECHSLER-SANTOS
Keyword(s):  
New Species ◽  
South America ◽  
Species Complex ◽  
High Elevation ◽  
Southern Brazil ◽  
Distribution Map ◽  
Natural Grasslands ◽  
Two New Species

Margyricarpus pinnatus is a poorly understood entity from natural grasslands of South America that it better considered as a species complex. In this work we contribute to the advancement of the taxonomic knowledge of this challenging species complex by describing two new species of Margyricarpus from southern Brazil. We present field photographs, illustrations, a distribution map and ecologic and conservation notes on the new species.

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