scholarly journals A new species of Litarachna Walter, 1925 (Acari: Hydrachnidia: Pontarachnidae) from Corozal Bay (Belize), described based upon morphology and DNA barcodes

Acarologia ◽  
2021 ◽  
Vol 61 (3) ◽  
pp. 602-613
Author(s):  
Lucia Montes-Ortiz ◽  
Tom Goldschmidt ◽  
Lourdes Vásquez-Yeomans ◽  
Manuel Elías-Gutiérrez

A new planktonic species of the marine water mites of the family Pontarachnidae Koenike, 1910 is described from Corozal Bay, an estuarine system in Belize. The morphological description includes Scanning Electronic Microscope (SEM) images and is augmented by an analysis of DNA cytochrome c oxidase I (COI) sequences, the DNA barcode, used for the first time for a species description in this group.

Zootaxa ◽  
2019 ◽  
Vol 4674 (4) ◽  
pp. 426-438
Author(s):  
CHENGLONG CAO ◽  
SIYAO HUANG ◽  
YONGQIANG XU ◽  
HAOMIN WU ◽  
TIANPENG CHEN ◽  
...  

The specimens of the family Hesperiidae collected from Tibet during 2016–2018 are identified using morphology. COI sequences of 76 individuals are newly obtained. The result of our morphological study is congruent with COI gene analyses. Maximum likehood (ML) and Bayesina inferences (BI) analyses reveal that individuals identified morphologically as the same species cluster cohesively. The minimum interspecific genetic distance is 1.7% between Halpe aucma and H. filda, and the genetic distance between conspecific individuals ranged from 0 to 0.2% for the genus Halpe. A total of 51 species are recognized, and six of them, Celaenorrhinus consanguineus Leech, 1891, Barca bicolor (Oberthür, 1896), Aeromachus propinquus Alphéraky, 1897, Pedesta bivitta (Oberthür, 1886), Baoris penicillata chapmani Evans, 1937, and Ochlodes brahma Moore, 1878, are reported from Tibet for the first time, and the last species is new to China. 


Zootaxa ◽  
2020 ◽  
Vol 4779 (4) ◽  
pp. 553-562
Author(s):  
TIANTIAN YU ◽  
MIN WANG

The genus Sarcinodes Guenée, [1858]of China is reviewed and totally 9 species are recognized with the description of Sarcinodes hainana sp. nov. from Hainan, China. Sarcinodes lilacina Moore, 1888 is reported for the first time from Yunnan, China. The external morphology of adults, particularly the male and female genitalia, are illustrated. COI sequences were obtained as DNA barcodes for identification of the new species. A key to the Chinese Sarcinodes species is provided. 


Author(s):  
Shigeki Kobayashi ◽  
Haruka Matsuoka ◽  
Masaaki Kimura ◽  
Jae-Cheon Sohn ◽  
Yutaka Yoshiyasu ◽  
...  

The systematic position of Tonza Walker, 1864 is re-evaluated, based on the characteristics of immature stages and DNA barcodes. Larvae and pupae of Tonza citrorrhoa Meyrick, 1905 are described and illustrated for the first time. Larvae of this species form a loose web among the leaves and branches of the host plant, Putranjiva matsumurae Koidz. (Putranjivaceae Endl.). The immature stages of Tonza exhibit four unique apomorphies including: in the larva, the prolegs on A5 and A6 absent, and the seta L2 on the A1–A8 very small; in the pupa, four minute knobs are positioned in the middle portion on abdominal segments V and VI; while its caudal processes possess a W-shaped spine with numerous minute spines. These characteristics clearly distinguish Tonza from other yponomeutoid families and hence, we propose a new family group name, Tonzidae Kobayashi & Sohn fam. nov., for the genus Tonza. Existing DNA barcode data suggest a relationship with Glyphipterigidae Stainton, 1854. The family level status of Tonzidae fam. nov. provides a hypothesis that needs to be tested with larger molecular data.


2019 ◽  
Vol 30 (4) ◽  
pp. 159-167
Author(s):  
Arto Muinonen ◽  
Veikko Rinne ◽  
Eero Vesterinen

Dichrooscytus fervens Muinonen & Rinne sp. n. (Hemiptera: Heteroptera: Miridae) is described based on material collected in Finland between 2011 and 2018. A morphological description is provided along with DNA barcodes (COI gene) and a phylogeny of all the Dichrooscytus species for which a DNA barcode is available. The new species lives on Picea spp. and is still known only from Finland. A map of all the records is given, as well as an identification key of the Dichrooscytus species occurring in northern Europe.


Author(s):  
Elena Marco-Herrero ◽  
J. Ignacio González-Gordillo ◽  
José A. Cuesta

Although Parthenopidae is a brachyuran decapod family comprising almost 140 species, there is little knowledge about its larval morphology. There are only two complete larval developments reared in the laboratory and some larval stages described for seven species. In the present work these data are compared and analysed. A summary is made of the larval features that characterize parthenopids that can be used to distinguish them from other brachyuran larvae. In addition, the megalopa stage of Derilambrus angulifrons and Parthenopoides massena was collected from plankton and identified by DNA barcodes. The morphology of the megalopa of D. angulifrons is described for the first time, and that of P. massena is compared with a previous description.


Zootaxa ◽  
2019 ◽  
Vol 4686 (1) ◽  
pp. 119-126 ◽  
Author(s):  
OKSANA V. OREL ◽  
ALEXANDER A. SEMENCHENKO

An illustrated morphological description of the adult males of Tanytarsus heliomesonyctios Langton, 1999, is provided for the first time. The males were found in mountain lakes Bolshoi Darpir (Momsky District of the Republic of Sakha (Yakutia)) and Momontai (Susumansky District of the Magadan Region), located in the Kolyma River basin. Females, pupae and larvae of T. heliomesonyctios was previously described from Spitsbergen, Jan Mayen (Norway) and Ellesmere Island (Arctic Canada), and considered parthenogenetic. Tanytarsus heliomesonyctios is here for the first time noted for the fauna of Russia. Comparison of DNA barcodes shows high K2P nucleotide distances (1.7%) between the sexual populations (Norway and Russia) and the parthenogenetic populations (Svalbard and Canada). In the Bayesian tree, the COI- sequences from adult males group as sister to a strongly supported clade of sequences from parthenogenetic populations. This apparently indicates a single origin of parthenogeneticity, perhaps due to extreme environmental conditions. 


Zootaxa ◽  
2021 ◽  
Vol 4995 (3) ◽  
pp. 581-593
Author(s):  
KYU-TEK PARK ◽  
TIMM KARISCH

Five new species belonging to the subfamily Torodorinae of Lecithoceridae are described from Bioko Island (Equatorial Guinea), based on specimens which were collected during a short expedition on the island by the second author in 1994. The new species are three species of the genus Thubdora Park, 2018 (T. biocoica sp. nov., T. vernaculella sp. nov., and T. angustiala sp. nov.), and a new species of Ptilothyris Walsingham, 1891and Dragmatucha Meyrick, 1908 respectively (Ptylothyris ruicheensis sp. nov.; and Dragmatucha vulcaniella sp. nov.). In addition, Thubdora bilobella Park, 2018 is reported for the first time from Equatorial Guinea. Images for adults and the genitalia of all species are given.  


2017 ◽  
Vol 22 (10) ◽  
pp. 1639
Author(s):  
Jhih-Rong Liao ◽  
Chyi-Chen Ho ◽  
Chiun-Cheng Ko

Phytoseiid mites have been intensively surveyed in Taiwan during the past decades because of their potential as biological control agent. Despite the fact, many regions of Taiwan remain under-explored especially in mountain areas and neighboring islands. Typhlodromus (Anthoseius) crossostephium sp. nov. was collected from Crossostephium chinense (L.) Makino (Asteraceae) on rocky shore habitat during a survey on Lanyu Island. In this paper, presence of a phytoseiid mite on rocky shores is reported for the first time. A detailed morphological description of the new species and a key to the Taiwanese species of subgenus Anthoseius are provided.


2016 ◽  
Vol 14 (1) ◽  
pp. 29-37 ◽  
Author(s):  
Dương Thúy Yên ◽  
Nguyễn Kiệt ◽  
Bùi Sơn Nên ◽  
Nguyễn Văn Thường ◽  
Nguyễn Bạch Loan ◽  
...  

Three Pangasius species including P. krempfi, P. elongatus and P. mekongensis, are economically important. They can be mis-identified due to similar external appreance at small sizes. This study aimed to distinguish these species based on their differences in DNA barcode, COI (cytochrome c oxidase subunit I) gene, and morphological characteristics. Fish with various sizes (>90 samples/species) were sampled at the lower Mekong delta region. Kimura-2 parameter genetic distances based on COI sequences of three species (15 samples, in which, 4 unique sequences were assigned Genbank accession numbers from KT289877 to KT289880) are relatively high, ranging 9.33 – 12.10 %. Morphological measurements show that coutanble traits including numbers of fin rays and the first gill rakers vary in similar ranges but ratios of metric traits are significantly different among three species (P<0.01). Principle component analysis using metric traits sets three species apart. P. elongatus is characterized by elongated body, long caudal preduncle, large eyes, and retangle palatine tooth plates. P. krempfi differs from P. mekongesis in characteristics on their head. The number of sections, shape and length of barbel are different among three species. Phylogenetic relationship of three species based on morphology and COI sequences indicate that P. krempfi is closer to P. mekongenis rather than P. elongatus, and that the distance between P. mekongenis and P. elongatus is the largest.


Acarologia ◽  
2019 ◽  
Vol 59 (4) ◽  
pp. 456-474
Author(s):  
Sergey G. Ermilov ◽  
Stanislav Kalúz

This work includes taxonomic data on two species of oribatid mites of the family Otocepheidae from Malaysia. A new species of the genus Fissicepheus is described. Fissicepheus parastriganovae n. sp. differs from Fissicepheus striganovae Ermilov and Anichkin, 2014 by body ornamentation, length of interlamellar and notogastral setae and morphology of genital plates. The species Leptotocepheus murphyi (Mahunka, 1989) is recorded in Malaysia for the first time. A supplementary description of this species which was originally described from Singapore is given on the basis of the Malaysian specimens. The main morphological traits for L. murphyi are summarized.


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