Morphological and molecular characterization of a new species of Diabrotica (Coleoptera, Chrysomelidae, Galerucinae)

Zootaxa ◽  
2008 ◽  
Vol 1922 (1) ◽  
pp. 33-46 ◽  
Author(s):  
NORA CABRERA ◽  
DANIEL R. SOSA GÓMEZ ◽  
ADRIANA MICHELI

The new species Diabrotica wartensis Cabrera & Sosa-Gómez was found feeding on roots and leaves of sunflower and soybean in the north of the state of Paraná. A set of characters of diagnostic value: mouthparts, hind wing venation, binding patch, metendosternite, and details of male and female genitalia previously overlooked in the genus was provided. In addition to the morphological characterization, the molecular analyses of the COI mitochondrial gene and the ITS-1 rDNA nuclear region were included. The analysis of the ITS-1 nuclear region alone suggests proximity of D. wartensis to the Diabrotica fucata group, whereas molecular evidence based on combined analysis of COI and ITS-1 region suggest that this new species is distantly related to the Diabroticina with known sequences deposited in the GenBank.

Zootaxa ◽  
2020 ◽  
Vol 4758 (1) ◽  
pp. 45-82 ◽  
Author(s):  
L. LEE GRISMER ◽  
PERRY L. JR. WOOD ◽  
EVAN S. H. QUAH ◽  
MYINT KYAW THURA ◽  
JAMIE R. OAKS ◽  
...  

An integrative taxonomic analysis based on morphology, color pattern, and the mitochondrial gene ND2 recovered four new species of Hemiphyllodactylus Bleeker that are endemic to the Shan Plateau or Salween Basin in eastern Myanmar. Hemiphyllodactylus ngwelwini sp. nov. from the Shan Plateau is part of the earlier described “eastern Myanmar clade” renamed herein as the north lineage and H. kyaiktiyoensis sp. nov. and H. pinlaungensis sp. nov. of the Shan Plateau and H. zwegabinensis sp. nov. of the Salween Basin compose an entirely new Burmese clade herein referred to as the south lineage. Although the north and south lineages come within 46 km of one another on the Shan Plateau, they are not sister lineages but sequentially separated by two lineages from Yunnan, China and another from northwestern Thailand. Hemiphyllodactylus zwegabinensis sp. nov. is the first species of this genus to be recorded from the Salween Basin and is known only from a wind-blown cloud forest on the top of the insular, karstic mountain Zwegabin in Kayin State. All other Burmese species except for H. typus, are endemic to the various localities throughout the Shan Plateau. These four new species bring the total number of Hemiphyllodactylus in Myanmar to at least 10 which is certainly an extreme underestimate of the diversity of this genus given that we discover new species at every upland locality we survey. 


Zootaxa ◽  
2018 ◽  
Vol 4526 (4) ◽  
pp. 447
Author(s):  
REZA GHADERI ◽  
AKBAR KAREGAR ◽  
ESMAEIL MIRAEIZ

Trichotylenchus gorganiensis n. sp. is described and illustrated based on morphological and morphometric data. The new species is characterized by its 760–1073 µm long body, conoid-rounded lip region continuous with the body contour and bearing 5–7 fine striae, 22.0–24.5 µm long stylet, basal pharyngeal bulb offset or slightly overlapping intestine, post-anal sac extending 50–73 % of the tail region, and cylindrical or subclavate tail with a striated terminus. Differences of the new species from the closely related species T. astriatus, T. astriatoides, T. changlingensis and T. papyrus are discussed. Photomicrographs and several taxonomic notes on 13 other species of Telotylenchinae, collected from Iran, are provided. 


2018 ◽  
Vol 46 (3) ◽  
pp. 507 ◽  
Author(s):  
Volker W. Framenau ◽  
Zoë R. Hamilton ◽  
Terrie Finston ◽  
Garth Humphreys ◽  
Kym M. Abrams ◽  
...  

Crustaceana ◽  
2021 ◽  
Vol 94 (10) ◽  
pp. 1201-1220
Author(s):  
Qinghua Chen ◽  
Wenjian Chen ◽  
Yuanwei Hu ◽  
Ka Yan Ma ◽  
Zhaoliang Guo

Abstract This study dealt with three species of ornamental palaemonid freshwater prawns of the genus Macrobrachium, based on morphological and molecular analysis. Macrobrachium pentazona He, Gao & Guo, 2009; M. laevis Zheng, Chen & Guo, 2019; and M. bilineare sp. nov. are distinguishable from closely related species by segmental ratios, spination of the second pereiopods and the slender scaphocerite. Macrobrachium bilineare sp. nov. can easily be recognized in the field by its bright colour pattern. Molecular evidence of mitochondrial cytochrome oxidase subunit I (COI), also supports the characterization of this new species, raising the total number of Macrobrachium spp. known from China to 41. Detailed description, illustrations, colour photographs, habitat information, distribution maps and features of conservation significance are also briefly discussed.


Zootaxa ◽  
2020 ◽  
Vol 4819 (2) ◽  
pp. 375-384
Author(s):  
DANIEL MOURA LIMA ◽  
ALBERTO MOREIRA DA SILVA-NETO ◽  
ALFONSO N. GARCÍA ALDRETE ◽  
FREDDY BRAVO

Two new species of Brasineura are described from Brazil based on male specimens: Brasineura calori sp. n. (Bahia: Brazil) and Brasineura morrense sp. n. (Bahia: Brazil). They differ from the other species in the genus, in which the males are known, by hypandrium and phallosome structures. New records and comments on variation in the fore- and hind- wing venation of B. troglophilica Silva-Neto & García Aldrete and B. diamantina Silva-Neto & García Aldrete are presented. The identification key to male Brasineura species is updated.


Zootaxa ◽  
2020 ◽  
Vol 4821 (1) ◽  
pp. 49-70
Author(s):  
ASHOK KUMAR MEENA ◽  
RAJAMANI SWAMINATHAN ◽  
RAJENDRA NAGAR

The present paper deals with a description of two new species of crickets of the subfamily Podoscirtinae (Orthoptera: Gryllidae), Trelleora khasiana sp. nov. and Indotrella maculata sp. nov., from India; besides, some additional morphological characteristics of the already reported species, Indotrella angusta Gorochov, 2003 is also presented. The morphological characterization of these two new species is supported with suitable line diagrams and plates. A checklist of crickets of Podoscirtinae for the Asia-tropical region is included.


Zootaxa ◽  
2008 ◽  
Vol 1851 (1) ◽  
pp. 65
Author(s):  
D. A. DMITRIEV

The North American leafhopper genus Erasmoneura Young was described as a subgenus of Erythroneura Fitch by Young (1952) to comprise the informal Erythroneura vulnerata Fitch species group previously recognized by Beamer (1938, 1946). Erasmoneura was recently elevated to generic status (Dietrich & Dmitriev, 2006) and revised (Dmitriev & Dietrich, 2007). In this paper, the male of Erasmoneura bipentagona (Beamer), previously known only from the female holotype and placed in the genus based on external similarity and features of wing venation (Young, 1952; Dietrich & Dmitriev, 2006; Dmitriev & Dietrich, 2007, see also the note for the species below), and a new species are described. A key for identification of all 13 species of the genus is provided. The key is based mainly on male genitalia characters. Although individual species have a characteristic color pattern, details and intensity may be highly variable both inter- and intraspecifically.


2016 ◽  
Vol 91 (6) ◽  
pp. 739-751 ◽  
Author(s):  
F.B. Pereira ◽  
J.L. Luque

AbstractMolecular and morphological characterization of two species of Cucullanidae from freshwater fish in Brazil are provided, one of which represented an undescribed taxon. Cucullanus opisthoporus n. sp. was collected in Cichla melaniae from River Xingu, State of Pará, and in C. pinima from River Jamarí, State of Rondônia. Nematodes referable to Cucullanus grandistomis were collected in Oxydoras niger from River Xingu. The new species has an appendage in the tail tip, ventrally covered by small spines, which is an exclusive feature of Cucullanus tucunarensis. However, C. tucunarensis differs from C. opisthoporus n. sp. based upon the relative position of deirids and the excretory pore, which are more posterior from the oesophageal end in the new species. Observations of C. tucunarensis type specimens also revealed features that were wrongly or not reported in the original description. Type specimens of C. grandistomis were observed, although they were poorly preserved. After evaluation of newly collected specimens of C. grandistomis, features unreported in the original description were observed for the first time, including the presence of an intestinal caecum. Thus, C. grandistomis was transferred to Dichelyne. Sequences of the 18S and 28S rRNA genes revealed high genetic similarity between the specimens of C. opisthoporus n. sp. from the two different hosts as well as their genetic distance from Dichelyne grandistomis n. comb. Phylogenetic reconstructions using representatives of Cucullanidae suggested the artificiality of the current morphological system adopted to separate the genera, since most genera were not monophyletic, although the availability of genetic data is still fragmented.


Zootaxa ◽  
2017 ◽  
Vol 4281 (1) ◽  
pp. 232
Author(s):  
MARÍA INÉS CATALANO ◽  
CHRISTOPHER H. DIETRICH

 Two new genera, Sakakidikra n. gen. and Tricella n. gen., of tribe Dikraneurini McAtee are described from Ecuador, each based on a single new species, Sakakidikra jazminae n. sp. and Tricella antonellae n. sp. Both new genera described have only three apical cells in the forewing, an unusual characteristic in Typhlocybinae, but given the differences in the forewing and hind wing venation and male genitalia characters we consider it more appropriate to place the specimens in two separate monotypic genera. 


2015 ◽  
Vol 90 (2) ◽  
pp. 174-185 ◽  
Author(s):  
M. García-Varela ◽  
A.L. Sereno-Uribe ◽  
C.D. Pinacho-Pinacho ◽  
O. Domínguez-Domínguez ◽  
G. Pérez-Ponce de León

AbstractThe diplostomid genus Austrodiplostomum currently contains two species, i.e. A. mordax and A. ostrowskiae. Adults of these species inhabit the intestine of cormorants of the genus Nannopterum, whereas larval forms (metacercariae) are found in the eyes (vitreous humor) of freshwater fishes. Records of both species have been established across a wide geographic range in the Americas. Diplostomid adults and metacercariae were collected from a wide geographical range that spans from south-eastern Mexico, southwards to Central and South America. Even though the diplostomid has been largely reported in Mexico as Diplostomum (Austrodiplostomum) compactum, our specimens were identified morphologically as A. ostrowskiae. Sequences of the mitochondrial gene cytochrome c oxidase (cox 1) were obtained for 86 individuals, including 15 adults recovered from the intestine of Nannopterum brasilianus, in five localities, and 71 metacercariae from the eyes of ten fish species, in 13 localities. Sequences were used to evaluate the genetic diversity, and to test conspecificity of these specimens with the available sequence of A. ostrowskiae. Sequences were aligned with another 12 taxa representing five genera of Diplostomatidae, forming a dataset of 104 taxa with 478 nucleotides. The genetic divergence estimated among the 86 sequenced individuals, and that of A. ostrowskiae from the double-crested cormorant, Nannopterum auritus, in the USA, was very low, ranging from 0 to 0.8%. The maximum likelihood (ML) and Bayesian consensus trees showed that all sequences nested within a monophyletic lineage, with strong bootstrap and Bayesian posterior probability support values (100/1.0). In conclusion, a link between the metacercariae in fish and the adults in cormorants was established, indicating also that a single species is found in the distribution range comprising southern USA, southwards to Venezuela. Previous records of this species, particularly from Mexico, need to be corrected.


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