scholarly journals A new species of the genus Euseius Wainstein (Acari: Phytoseiidae) from Republic of Congo 

2021 ◽  
Author(s):  
Mireille Belle Mbou Okassa ◽  
Valentin Dibangou ◽  
Grace Nianga ◽  
Dollon Mbama Ntabi ◽  
Arsène Lenga
Keyword(s):  
Dna Sequences ◽  
Host Plants ◽  
Morphological Analysis ◽  
Integrative Approach ◽  
12S Rrna ◽  
Republic Of The Congo ◽  
Clear Delineation ◽  
The Republic ◽  
Morphological Differences ◽  
A New Species

Several individuals belonging to the genus Euseius, have been collected from three host plants (cassava, okra, and chilli) in the Republic of the Congo. Previous molecular and morphological analysis (integrative approach) have shown that 1) morphological differences existed between the Euseius sp. and both E. neodossei and E. fustis, and 2) both mitochondrial DNA fragments considered (i.e., 12S rRNA and ITSS) showed a clear delineation between Euseius sp. and E. fustis. It was not possible to compare these species with E. neodossei (a morphologically close species) owing to the lack of DNA sequences in GenBank for this species. The purpose of this study was to describe a news species Euseius congolensis sp. nov from Republic of the Congo.

Morphological and molecular identification of specimens in the genus Euseius (Acari: Phytoseiidae) from the Republic of Congo

Zootaxa ◽  
2020 ◽  
Vol 4768 (4) ◽  
pp. 479-498
Author(s):  
MIREILLE BELLE MBOU OKASSA ◽  
DOLLON MBAMA NTABI ◽  
ARSENE LENGA
Keyword(s):  
Molecular Analysis ◽  
Dna Sequences ◽  
Principal Component ◽  
Taxonomic Status ◽  
Original Description ◽  
Integrative Taxonomy ◽  
Integrative Approach ◽  
12S Rrna ◽  
Dna Fragments ◽  
The Republic

The purpose of this study was to identify the taxonomic status of several individuals belonging to the genus Euseius, collected from three host plants (cassava, okra, and chilli) in the Republic of the Congo, using morphometric and molecular analysis. For this, hierarchical ascending classification on principal component analysis was performed using morphological measurements from 21 and 22 individuals of E. fustis and Euseius sp., respectively, with the original description of Euseius neodossei considered. For molecular analysis, two DNA fragments were amplified and sequenced: the mitochondrial 12S rRNA and the nuclear ribosomal region ITSS. This integrative approach found that (1) morphological differences existed between the Euseius sp. and both E. neodossei and E. fustis, and (2) both mitochondrial DNA fragments showed a clear delineation between Euseius sp. and E. fustis. The results obtained highlight the value of using integrative taxonomy to improve the identification of species in under-sampled areas and the need to increase the number of DNA sequences deposited in GenBank database from this region. This is the first time that DNA sequences of mites from the Congo (Brazzaville) have been deposited in this database. 

A New Species of the Freshwater Cladoceran Genus Scapholeberis Schoedler, 1858 (Cladocera: Anomopoda) from the Semidesert Northern Mexico, Highlighted by DNA Barcoding

Zootaxa ◽  
2009 ◽  
Vol 2236 (1) ◽  
pp. 50-64 ◽  
Author(s):  
PATRICIA QUIROZ-VÁZQUEZ ◽  
MANUEL ELÍAS-GUTIÉRREZ
Keyword(s):  
New Species ◽  
Morphological Analysis ◽  
Mitochondrial Gene ◽  
Distinctive Character ◽  
Desert Region ◽  
Northern Mexico ◽  
Hyaline Membrane ◽  
Morphological Differences ◽  
A New Species ◽  
Trunk Limb

Sequencing of the CO1 mitochondrial gene (barcoding) highlighted a possible different species in the semi-desert region of Mexico. After a detailed morphological analysis we describe Scapholeberis duranguensis n. sp. (Cladocera: Anomopoda: Daphniidae). Specimens from the type locality, El Chupadero, Durango, were compared with specimens of S. armata armata Herrick, 1882 and S. armata freyi Dumont and Pensaert, 1983 from Canada and southeastern, central and northern Mexico. The main characters that differentiate the new species are: (1) a thicker denticulate membrane with a conspicuous underlying hyaline membrane at the posterior rim of the valves, (2) fewer setae in the gnathobase of trunk limb II and (3) longer and more rectilinear ejector hooks in trunk limb I. The presence of a pore-like structure at the top of the head was also observed, however we are not certain whether this can be considered as a distinctive character, as it was not consistent in all SEM scanned organisms. The denticulate membrane, the number of setae in the gnathobase of trunk limb II and the length of the ejector hooks are characters shared with other species, however, the combination of them and in particular the structure and thickness of the double membrane at the posterior rim of the valves lead us to conclude that S. duranguensis is a species different from S. armata and from other members of this genus. The CO1 sequences of S. armata freyi and S. duranguensis n. sp. showed a mean divergence of 12.02%, thus supporting the morphological differences between them. Finally, a comparison of the CO1 sequences of Scapholeberis duranguensis n.sp. with other Scapholeberinae available in GenBank supported our results.

Description of a new water mite of the genus Utaxatax (Acari, Hydrachnidia: Anisitsiellidae) from Kazakhstan

Zootaxa ◽  
2020 ◽  
Vol 4860 (3) ◽  
pp. 445-450
Author(s):  
PETR V. TUZOVSKIJ
Keyword(s):  
New Species ◽  
Nature Reserve ◽  
Water Mite ◽  
The Republic ◽  
Morphological Differences ◽  
A New Species

A new species of the genus Utaxatax (s.s.), U. stolbovi n. sp., is described from theAksu-Zhabagly Nature Reserve in the Republic of Kazakhstan. It is most similar to the Himalayan U. brahmeri Panesar, 2004. Similarities and morphological differences are discussed. 

A new species of the Spinomantis bertini species complex (Anura: Mantellidae) from Pic d’Ivohibe Special Reserve (Madagascar)

Zootaxa ◽  
2019 ◽  
Vol 4656 (1) ◽  
pp. 133-142 ◽  
Author(s):  
JOANA SABINO-PINTO ◽  
ANDOLALAO RAKOTOARISON ◽  
MOLLY C. BLETZ ◽  
DEVIN EDMONDS ◽  
FRANK GLAW ◽  
...  
Keyword(s):  
New Species ◽  
Dna Sequences ◽  
Species Complex ◽  
Nuclear Dna ◽  
The Other ◽  
Rrna Gene ◽  
Frog Species ◽  
Mitochondrial 16S Rrna Gene ◽  
Morphological Differences ◽  
A New Species

We describe a new frog species of the Spinomantis bertini species complex based on congruent genetic evidence from mitochondrial and nuclear DNA sequences as well as minor morphological differences. A molecular phylogeny derived from the mitochondrial 16S rRNA gene revealed that Spinomantis mirus sp. nov. is sister to a clade containing the other two described species of the species complex, S. bertini and S. beckei, but strongly differentiated from these two species by 8.1–9.8% pairwise distances in this gene. DNA sequences from two nuclear genes revealed that S. mirus sp. nov. shares no alleles with these two species. Phenotypically, S. mirus sp. nov. differs from the other species of the complex by its larger size and some aspects of its coloration, including clear mottling on the flanks, tri-color banding on the legs, and distinct brown dots on the dorsum. The new species is so far only known from Pic d’Ivohibe Special Reserve. Its distribution thus appears to not overlap with those of the other two species, which as far as known are restricted to the Andohahela Massif in the extreme South-East of Madagascar, at a distance of about 250 km from Ivohibe. 

A new species of Trachylepis (Squamata: Scincidae) from Central Africa and a key to the Trachylepis of West and Central Africa

Zootaxa ◽  
2017 ◽  
Vol 4268 (2) ◽  
pp. 255 ◽  
Author(s):  
KAITLIN E. ALLEN ◽  
WALTER P. TAPONDJOU N. ◽  
LUKE J. WELTON ◽  
AARON M. BAUER
Keyword(s):  
New Species ◽  
Central Africa ◽  
Maximum Size ◽  
White Stripe ◽  
Republic Of The Congo ◽  
West And Central Africa ◽  
The Republic ◽  
Disturbed Forest ◽  
A New Species ◽  
Bright Blue

A new species of skink, Trachylepis gonwouoi sp. nov. is described from Cameroon and the Republic of the Congo. It differs from all other species of Trachylepis in Central-West Africa by a combination of number of keels on dorsal scales (3–5); moderate SVL (maximum size of 80 mm); number of scale rows at midbody (28–34); number of supracilliaries (6–10); a well defined lateral white stripe, bordered by black, extending from under the eye to the insertion of the hind limb; and a ventral color in life of bright blue-green. Trachylepis gonwouoi sp. nov. was found in association with disturbed forest at elevations from 50 to 1050m. This species is syntopic with T. affinis and T. maculilabris. In order to aid in the identification of Trachylepis in West and Central Africa with the addition of T. gonwouoi sp. nov., we provide an updated key to the Trachylepis found from Mauritania through the Democratic Republic of the Congo. This key combines previous literature that treated Western and Central African taxa separately and represents the most comprehensive key for Trachylepis in West-Central Africa to date.

scholarly journals An integrative approach reveals a new species of flightless leaf beetle (Chrysomelidae: Suinzona) from South Korea

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Hee-Wook Cho ◽  
Sang Ki Kim
Keyword(s):  
New Species ◽  
South Korea ◽  
Host Plants ◽  
Leaf Beetle ◽  
Integrative Approach ◽  
Dispersal Ability ◽  
Morphological Evidence ◽  
Ecological Data ◽  
Morphological Studies ◽  
A New Species

AbstractThe leaf beetle genus Suinzona, consisting of over 20 species, is mainly known for species from Southwest China, and its closely related genus Potaninia, with only two species, is widely distributed in South China and upper Southeast Asia. Despite recent morphological studies, the status of these taxa has long been controversial. Here, we investigated the taxonomic status and phylogenetic relationships of the genera Suinzona and Potaninia within Chrysomelinae using molecular, morphological and ecological data. Molecular phylogenetic analysis supported that they should be regarded as distinct genera, which is consistent with morphological evidence, e.g., well-developed/reduced hind wings. Based on combined evidence from examination of larval and adult morphology, host plants and mitochondrial genomes, we demonstrate that P. cyrtonoides should be placed in the genus Suinzona and that specimens from South Korea represent a new species. Suinzona borowieci sp. nov., occurring in narrow strips of habitat, shows high levels of genetic divergence and distantly related host plants between populations. The population differentiation seems to be correlated with its non-functional wings causing reduced dispersal ability and genetic isolation. Several populations have declined dramatically over the last few decades due to loss of habitat and thus are in need of protection as conservation units.

A new species of Brevipalpus (Acari: Tenuipalpidae) from the Azores Islands, with remarks on the B. cuneatus species group

2019 ◽  
Vol 24 (11) ◽  
pp. 2184-2208
Author(s):  
Jorge Laerson Dos Santos Alves ◽  
Francisco Ferragut ◽  
Renata Santos Mendonça ◽  
Aline Daniele Tassi ◽  
Denise Navia
Keyword(s):  
New Species ◽  
Dna Sequences ◽  
Nuclear Dna ◽  
Phylogenetic Analyses ◽  
Species Group ◽  
Wild Plants ◽  
Integrative Approach ◽  
Electron And Light Microscopy ◽  
Definition Of ◽  
A New Species

Brevipalpus contains about 290 species, some of which are considered of economic importance. In spite of their agricultural importance, the species diversity is scarcely known in several regions around the world, notably on wild plants. In this work a new species collected on an endemic ivy of the Azores Archipelago, Hedera azorica Carrière (Araliaceae), is described based on an integrative approach using morphological traits of the adults, obtained through electron and light microscopy, and molecular characters based on mitochondrial and nuclear DNA sequences. Phylogenetic analyses were conducted in order to produce reliable phylogenetic placement of the new species, which is tentatively classified in the B. portalis species group. Morphological similarities between the new species and B. cuneatus Canestrini and Fanzago point out to some inconsistencies in the current morphological classification of Brevipalpus species, especially in the definition of the B. cuneatus group, herein discussed.

Description and phylogenetic relationships of a new trans-Andean species of Elachistocleis Parker 1927 (Amphibia, Anura, Microhylidae)

Zootaxa ◽  
2020 ◽  
Vol 4779 (3) ◽  
pp. 323-340
Author(s):  
JUAN C. SÁNCHEZ-NIVICELA ◽  
PEDRO L. V. PELOSO ◽  
VERÓNICA L. URGILES ◽  
MARIO H. YÁNEZ-MUÑOZ ◽  
YERKA SAGREDO ◽  
...  
Keyword(s):  
New Species ◽  
16S Rrna ◽  
South America ◽  
Dna Sequences ◽  
Phylogenetic Relationships ◽  
Mitochondrial Genes ◽  
12S Rrna ◽  
The Andes ◽  
Southern Ecuador ◽  
A New Species

Elachistocleis is a Neotropical genus of microhylid frogs with 18 species, most of which occur east of the Andes in South America. Here, we present a new phylogeny of Gastrophryninae and describe and name a new species of Elachistocleis from southern Ecuador—the first to be found west of the Andes and also the first from Ecuador. Our phylogeny is based on DNA sequences of the mitochondrial genes 12S rRNA, 16S rRNA, COI, and the nuclear genes BDNF, cmyc2, H3A, 28S, SIA1, and Tyr. Elachistocleis araios sp. n., is the sister species of all other Elachistocleis. The finding of this taxon highlights the probability of the existence of more Elachistocleis species west of the Andes. 

Morphological discrimination of six species of the genus Anuraphis (Hemiptera: Aphididae), including description of a new species

2003 ◽  
Vol 135 (6) ◽  
pp. 839-862 ◽  
Author(s):  
Sebastiano Barbagallo ◽  
Giuseppe E. Cocuzza
Keyword(s):  
New Species ◽  
Host Plants ◽  
Central Area ◽  
Discriminant Functions ◽  
Closely Related Species ◽  
Italian Peninsula ◽  
Morphological Differences ◽  
Western Palaearctic ◽  
Secondary Host Plants ◽  
A New Species

AbstractThe most relevant morphometric characteristics of six species of the genus Anuraphis Del Guercio were compared. Anuraphis shaposhnikovisp. nov. is described and its morphological differences from the closely related species Anuraphis subterranea are presented. The new species was collected in Sicily and in the central area of the Italian peninsula on Magydaris pastinacea (Lam.) Paol. (Apiaceae) and Opopanax chironium (L.) Koch (Apiaceae), which are its secondary host plants. A key to the viviparous morphs (apterae and alatae) of the seven western Palaearctic species living on secondary hosts is provided. Discriminant functions have been derived to separate both apterae and alatae of A. shaposhnikovi and A. subterranea.

Morphometric and molecular analysis of the Encarsia inaron species-group (Hymenoptera: Aphelinidae), parasitoids of whiteflies (Hemiptera: Aleyrodidae)

2002 ◽  
Vol 92 (2) ◽  
pp. 165-175 ◽  
Author(s):  
S. Manzari ◽  
A. Polaszek ◽  
R. Belshaw ◽  
D.L.J. Quicke
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
Molecular Biology ◽  
Morphometric Analysis ◽  
Dna Sequences ◽  
Related Species ◽  
Host Plants ◽  
Species Group ◽  
Biology Laboratory ◽  
A New Species

AbstractSeveral series of host-reared specimens of an Encarsia species, initially thought to be the cosmopolitan Encarsia inaron (Walker), were collected in the Azores Islands (Portugal). Subsequent morphometric analysis supported the presence of two species: E. inaron and a new species, described herein as Encarsia estrellae Manzari & Polaszek sp. n.Encarsia estrellae was reared from Aleyrodes singularis Danzig, A. ?singularis, and Bemisia sp. afer-group on several host plants. In addition, the D2 region of the 28S rDNA gene was sequenced in eight individuals belonging to these species, as well as single representatives of two closely related and one distantly related species. Phylogenetic analysis of these DNA sequences, together with 23 additional Encarsia sequences retrieved from the European Molecular Biology Laboratory (EMBL) and GenBank databases, further supported the specific status of E. estrellae, and the placement of E. dichroa (Mercet) in the E. inaron species-group. Additionally, E. inaron is redescribed and some taxonomic problems in the E. inaron species-group are discussed.

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