Description of a new species of Dicyphus Fieber (Insecta: Heteroptera: Miridae) from Portugal based on morphological and molecular data

2006 ◽  
Vol 37 (3) ◽  
pp. 281-300 ◽  
Author(s):  
Gerasimos Cassis ◽  
Jose Isidro Martinez-Cascales ◽  
Juan Antonio Sanchez

AbstractA new species of the plantbug genus Dicyphus (Insecta: Heteroptera: Miridae), D. umbertae Sanchez & Cassis sp. n., from Portugal is described and the closely related species, Dicyphus cerastii Wagner is redescribed. Several body measurements were taken. Male and female genitalia of both species are illustrated. D. umbertae was found in several localities in Central and South of Portugal on tomato (Lycopersicon esculentum Mill.) and Hyosciamus albus L. D. cerastii was found in southeast Spain on squash (Cucurbita maxima Duchesne), L. esculentum, Ononis natrix L., Withania frutescens (L.) Pauquy and H. albus. The external morphology of the two species is very alike and measurements overlap. In the two species the aedeagus has a similar pair of prominent slightly arcuate sclerites, but the shape and setae on the left paramere are different. Phylogenetic analyses were performed using 381 bp fragments of Cytochrome b. Other dicyphine species were used as outgroups in the analyses: Dicyphus tamaninii Wagner, D. rubicundus Blöte, D. escalerae Lindberg, Nesidiocoris tenuis (Reuter), Cyrtopeltis geniculata Fieber and Macrolophus sp. Several evolutionary models were explored under a maximum likelihood framework. The molecular analyses provided strong support for the species identity of the two sister species D. umbertae and D. cerastii.

Phytotaxa ◽  
2017 ◽  
Vol 332 (1) ◽  
pp. 31 ◽  
Author(s):  
ZI-QIANG WU ◽  
SHAN SHEN ◽  
KAI-YUE LUO ◽  
ZHENG-HUI WANG ◽  
CHANG-LIN ZHAO

A new poroid wood-inhabiting fungal species, Atraporiella yunnanensis sp. nov., is proposed based on morphological and molecular characters. The species is characterized by cream pore surface when dry, which is easy to separate from substrate and very rapidly stained dark brown to black when bruised; hyphal system monomitic with generative hyphae hyaline to pale brown, thin-walled, unbranched, interwoven; slightly allantoid basidiospores, 2.2–3 × 0.8–1.5 µm. The internal transcribed spacer (ITS) and the large subunit (LSU) regions of nuclear ribosomal RNA gene sequences of the studied samples were generated, and phylogenetic analyses were performed with maximum likelihood, maximum parsimony and bayesian inference methods. The phylogenetic analysis based on molecular data of ITS+nLSU sequences showed that Atraporiella yunnanensis belonged to the residual polyporoid clade, formed a monophyletic lineage with a strong support (100% BS, 100% BP, 1.00 BPP) and was closely related to A. neotropica, and then grouped with other related genera: Antrodiella, Pouzaroporia, Steccherinum and Xanthoporus. Both morphological and molecular characters confirmed the placement of the new species in Atraporiella.


Phytotaxa ◽  
2021 ◽  
Vol 484 (3) ◽  
pp. 291-297
Author(s):  
XINYU XU ◽  
CHANG-CHUN DING ◽  
WENQI HU ◽  
XIA YU ◽  
YU ZHENG ◽  
...  

A new species of Cymbidium (Orchidaceae), Cymbidium xichouense, from Yunnan Province, China, is described and illustrated based on morphological evidence and molecular analyses. The new orchid is morphologically similar to C. qinbeiense, but it has several morphological features that distinguish it from C. qiubeinense and all other recognized species in Cymbidium. Phylogenetic analyses based on nuclear (ITS) and plastid DNA (matK) were conducted, and the results also supported the status of C. xichouense as a new species, which is sister to C. qiubeiense.


Phytotaxa ◽  
2016 ◽  
Vol 283 (1) ◽  
pp. 43 ◽  
Author(s):  
BING LIU ◽  
YUN-QING HAO ◽  
YONG YANG ◽  
TIAN-TIAN SUN ◽  
YANG-JUN LAI ◽  
...  

Based on field investigations, morphological and molecular systematic studies, a new species, Caltha dysosmoides (Ranunculaceae) from southwestern China is described. It differs from all other known congeneric species by the densely dentate leaf margin, the pendulous pedicels, the scarlet flowers, the compressed filaments, and the triangular connective. To better understand taxonomy of this new species, phylogenetic analyses were conducted using a combined dataset from nrITS, plastid trnL-trnF region, and atpB-rbcL spacer. The results indicate that Caltha is monophyletic and C. dysosmoides is sister to C. sinogracilis. The conservation status of the new species is categorized as CR based on IUCN criteria.


Phytotaxa ◽  
2021 ◽  
Vol 509 (1) ◽  
Author(s):  
WENQI HU ◽  
QINGHAI ZHANG ◽  
GUIZHEN CHEN ◽  
MENGJIA ZHU ◽  
XIA YU ◽  
...  

This study describes a new orchid species, Cymbidium motuoense, from Xizang, China based on morphological and molecular analyses. Several unique morphological features distinguish this new orchid from all other species of Cymbidium. Based on its morphology, this orchid is similar to C. tracyanum but differs in its yellow-green flower with dark purple-red spots on the veins, oblong-elliptic sepals, side lobes of the lip with reddish brown hairs along the veins and disc with three purple-red lamellae. Phylogenetic analyses based on plastid DNA (matK and rbcL) supported C. motuoense as a new species. However, the low support in nuclear ribosomal ITS tree provide the possibility that the new orchid may be a natural hybrid of C. tracyanum and C. iridioides or another closely related species.


2006 ◽  
Vol 37 (4) ◽  
pp. 385-404 ◽  
Author(s):  
Juan Antonio Sanchez ◽  
Jose Luis Cenis ◽  
Gerasimos Cassis ◽  
Jose Isidro Martinez-Cascales

AbstractMacrolophus contains a small group of Palaearctic species with very simple and similar external morphology. The classification of these species has been based on variable characters such as body measurements, the height of the black band-shaped macula behind the eyes and the colour of the first antennal segment. Macrolophus melanotoma (Costa 1853), Macrolophus pygmaeus (Rambur 1839) and Macrolophus costalis Fieber 1858, are the most reputed predators of the genus. The classification history of M. melanotoma and M. pygmaeus shows a great number of misconceptions that have left the identity of the two species in confusion. Despite the economic importance of these two species, they have not received comprehensive taxonomical treatment until now. In this work, the morphological and sequence variation of a cytochrome b fragment (320 bp) were analysed to determine the identity of M. melanotoma and M. pygmaeus. Macrolophus costalis, Dicyphus cerastii Wagner 1951b, Dicyphus tamaninii Wagner 1951b, Cyrtopeltis geniculata Fieber 1861 and Nesidiocoris tenuis (Reuter 1895) were used as outgroup taxons in the phylogenetic analyses. Several evolutionary models were explored under a maximum likelihood framework. Macrolophus melanotoma and M. pygmaeus were classified as two distinct species based on monophyly, molecular and morphological data. Nodes at the species level were supported by high bootstrap values. M. pygmaeus and M. costalis are sister species, M. melanotoma basal to them. The shape of the black macula behind the eye may be used as a diagnostic character to differentiate M. melanotoma from M. pygmaeus with some degree of confidence.


PhytoKeys ◽  
2019 ◽  
Vol 130 ◽  
pp. 75-84
Author(s):  
Yun-Feng Huang ◽  
Li-Na Dong ◽  
Wei‑Bin Xu

Lysimachia fanii, a new species of Lysimachia (Subgen. Idiophyton, Primulaceae), is described and illustrated from Guangxi, China based on morphological and molecular data. Lysimachia fanii differs from L. verbascifolia, L. rupestris and L. alpestris mainly by the habit being nearly rosulate, leaves congested at the apex of the rhizome, leaf blades spatulate to narrowly oblanceolate and flowers solitary. Phylogenetic analyses supported L. verbascifolia as sister to L. fanii. This new species is endemic to limestone areas in Liucheng county of Guangxi, China.


2019 ◽  
Vol 95 (2) ◽  
pp. 507-516
Author(s):  
Pâmella Silva de Brito ◽  
Erick Cristofore Guimarães ◽  
Luis Fernando Carvalho-Costa ◽  
Felipe Polivanov Ottoni

A new species of Aphyocharax is described from the Maracaçumé river basin, eastern Amazon, based on morphological and molecular data. The new species differs from all its congeners, mainly by possessing the upper caudal-fin lobe longer than the lower one in mature males, and other characters related to teeth counts, colour pattern, and body depth at dorsal-fin origin. In addition, the new species is corroborated by a haplotype phylogenetic analyses based on the Cytochrome B (Cytb) mitochondrial gene, where its haplotypes are grouped into an exclusive lineage, supported by maximum posterior probability value, a species delimitation method termed the Wiens and Penkrot analysis (WP).


Zootaxa ◽  
2020 ◽  
Vol 4722 (5) ◽  
pp. 401-422 ◽  
Author(s):  
TRUONG QUANG NGUYEN ◽  
CUONG THE PHAM ◽  
TAO THIEN NGUYEN ◽  
ANH MAI LUONG ◽  
THOMAS ZIEGLER

A new species of Megophrys is described from Cao Bang Province, northeastern Vietnam based on morphological and molecular data. Morphologically, the new species is distinguishable from its congeners by a combination of the following characters: Size small (SVL 34.9–38.9 mm in males); tympanum visible; vomerine teeth absent; tongue not notched posteriorly; male with a single vocal sac; toes with rudimentary webbing; subarticular tubercles and lateral fringes absent on all digits; nuptial pads present on fingers I and II in males, with spicules; dorsal skin with scattered granules and tubercles; flank with tubercles; dorsum with a X-shaped dorsal ridge; dorsolateral folds prominent; a small horn-like tubercle present at the outer edge of the eyelid; dorsal surface yellowish brown with a dark brown triangle between the eyes, and a dark brown marking along the X-shaped ridge on the back. In the phylogenetic analyses, the new species is unambiguously nested within the subgenus Panophrys with interspecific uncorrected genetic p-distances (16S rRNA gene) varying from 4.26% (compared with M. rubrimera) to 10.80% (compared with M. acuta).


Phytotaxa ◽  
2019 ◽  
Vol 423 (2) ◽  
pp. 87-92
Author(s):  
XING-YU LIAO ◽  
XUE-DIE LIU ◽  
YU-TING JIANG ◽  
DI-YANG ZHANG ◽  
SI-REN LAN ◽  
...  

A new orchid species, Cymbidium atrolabium, from Yunnan Province, China, is described and illustrated based on morphological and molecular analyses. A detailed comparison between the newly discovered orchid and other members of Cymbidium was conducted. The new plant is similar to C. tortisepalum but differs by having a dark-purple inflorescence with smaller flowers, sepals that are pale green-yellow with a dark-purple broad midrib, petals that are dark-purple with pale green-yellow margins and a smaller, dark purple, densely papillose lip. Phylogenetic analyses based on nuclear ribosomal ITS and plastid (matK, rbcL) sequence data support the status of C. atrolabium as a new species.


Phytotaxa ◽  
2018 ◽  
Vol 374 (1) ◽  
pp. 63 ◽  
Author(s):  
JIZE XU ◽  
CHUNLAN ZHANG ◽  
TAIGA KASUYA ◽  
ODESHNEE MOODLEY ◽  
BAO LIU ◽  
...  

Tricholosporum haitangshanum sp. nov. is described as a new species from China, based on morphological and molecular data. It is morphologically characterized by a yellowish ochre pileus, cruciate basidiospores and ampullaceous cystidia. Phylogenetic analyses based on the nuc rDNA internal transcribed spacer (ITS) region supports that it belongs to Tricholosporum. Comparing it with phenotypically similar and molecular phylogenetically allied taxa concluded that it is a new species in Tricholosporum.


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