DNA barcodes and morphology confirm a new species of Rheocricotopus (Psilocricotopus) orientalis group (Diptera: Chironomidae)

Zootaxa ◽  
2020 ◽  
Vol 4768 (2) ◽  
pp. 282-290
Author(s):  
XIAO-LONG LIN ◽  
HAI-JUN YU ◽  
QIAN WANG ◽  
WEN-JUN BU ◽  
XIN-HUA WANG

Morphology and DNA barcodes confirm a new chironomid species within the Rheocricotopus (Psilocricotopus) orientalis group (Diptera: Chironomidae). Rheocricotopus (Psilocricotopus) kongi Lin et Wang sp. n. is described and illustrated based on adult male from Hainan, China. Key to adult males of the R. orientalis group is given. 

Zootaxa ◽  
2019 ◽  
Vol 4571 (4) ◽  
pp. 544
Author(s):  
BINGJIAO SUN ◽  
XIAOLONG LIN ◽  
XINHUA WANG ◽  
EUGENYI A. MAKARCHENKO

Morphological description for adult male of a new species Diamesa qiangi sp. nov. and redescription for adult males of the little-known species Linevitshia prima Makarchenko and Sasayusurika nigatana (Tokunaga) of subfamily Diamesinae from the Oriental Region of China are given. 


Zootaxa ◽  
2017 ◽  
Vol 4231 (3) ◽  
pp. 398 ◽  
Author(s):  
XIN QI ◽  
XIN-HUA WANG ◽  
TROND ANDERSEN ◽  
XIAO-LONG LIN

The genus Manoa and the tribe Pseudochironomini are recorded from the Oriental region for the first time. Manoa xianjuensis Qi & Lin sp. n. from Xianju National Park, Zhejiang, China is described and illustrated as adult male and female, the latter associated with the male by standard DNA barcodes. A neighbor joining tree based on available Pseudochironomini DNA barcodes and keys to the adults in Manoa are given. 


Zootaxa ◽  
2018 ◽  
Vol 4422 (4) ◽  
pp. 591
Author(s):  
ATSUYA KODAMA ◽  
KOICHIRO KAWAI ◽  
HIDETOSHI SAITO

A new species of the genus Tanytarsus van der Wulp, 1874 was described and illustrated based on an adult male. Tanytarsus trichovalis sp. nov. belongs to the eminulus species group, and is closely related to T. tamaundecimus Sasa, 1980, T. okuboi Sasa, 1986, and T. tonebeceus Sasa & Tanaka, 2000. However, the species is distinguished from these species by the morphology of the hypopygium. We also present the first record of T. ovatus Johannsen, 1932 in Japan. In addition, DNA barcoding of 5 species including T. trichovalis sp. nov., T. ovatus, and other morphologically related species was undertaken. A new key of the eleven Japanese eminulus species group was compiled. 


ZooKeys ◽  
2021 ◽  
Vol 1011 ◽  
pp. 139-148
Author(s):  
Wen-Bin Liu ◽  
Yuan Yao ◽  
Chun-Cai Yan ◽  
Xin-Hua Wang ◽  
Xiao-Long Lin

Polypedilum (Cerobregma) huapingensis Liu & Lin, sp. nov. is described and illustrated based on an adult male from Huaping National Nature Reserve, Guangxi, China. A DNA barcode analysis, including the known partial COI sequences of species in the Cerobregma subgenus, was conducted. An updated key to adult males of the subgenus Cerobregma is provided.


Zootaxa ◽  
2020 ◽  
Vol 4896 (2) ◽  
pp. 201-223
Author(s):  
BINDARIKA MUKHERJEE ◽  
TUHAR MUKHERJEE ◽  
NILADRI HAZRA

A new species of the genus Cryptotendipes Beck et Beck is described on the basis of adult male. It is the third species from India and ninth from the Oriental region. The Chinese species, C. nodus Yan, Tang et Wang, 2005 is recorded firstly from India. The molecular barcoding of two species, Cryptotendipes disparilis Pal et Hazra, 2018 and C. nodus is provided. Additional information and revision of two Indian species Cryptotendipes aculeatus Pal et Hazra, 2018 and C. disparilis Pal et Hazra, 2018 are furnished for erroneous description. A tentative cladistic relationship based on the morphological data of adult males and a revised world key to the adult males of the genus Cryptotendipes are also provided. 


ZooKeys ◽  
2018 ◽  
Vol 760 ◽  
pp. 89-112 ◽  
Author(s):  
Peter K. L. Ng ◽  
Paul Y. C. Ng

Seven species of freshwater crabs from three families are recorded from and around the Danum Valley Conservation Area in Sabah, Malaysian Borneo: Thelphusulacapillodigitus sp. n., Thelphusuladicerophilus Ng & Stuebing, 1990, Arachnothelphusaterrapes Ng, 1991, Terrathelphusasecula Ng & Tan, 2015, Parathelphusavalida Ng & Goh, 1987 (new record) (Gecarcinucidae); Isolapotamoningeri Ng & Tan, 1998 (Potamidae); and Geosesarmadanumense Ng, 2002 (Sesarmidae). The new species of Thelphusula Bott, 1979, can be distinguished from all congeners by a unique combination of morphological features, most notably the presence of dense patches of short setae on the fingers of the adult male chelipeds, as well as the structure of the male first gonopod. Arachnothelphusaterrapes is confirmed to be a phytotelm species. A key to all species in the conservation area is provided.


Zootaxa ◽  
2021 ◽  
Vol 4941 (2) ◽  
pp. 239-258
Author(s):  
YUN-HE WU ◽  
XIAO-LONG LIU ◽  
WEI GAO ◽  
YU-FAN WANG ◽  
YING-CHUN LI ◽  
...  

Approximately half of the species in speciose genus Raorchestes were described during the past 10 years, yet only 11 species are known from Southeast Asia and southern China (SEA-SC), adjacent Himalayas, and northeastern India. Field work in northwestern Yunnan province, China resulted in the discovery of one new species in the genus based on morphological and molecular analyses. The new species is diagnosed by small size with 15.0–19.0 mm SVL in adult males (n=3); tongue pyriform, notched posteriorly; rudimentary webbing between toes; fingers and toes with narrow lateral dermal fringes; tibiotarsal articulation reaching anterior of the eye when hindlimb is stretched along the side of the body; relative finger lengths: I < II < IV < III, relative toe lengths: I < II < V < III < IV; inner metatarsal tubercle oval, outer metatarsal tubercle absent; finger discs and toe discs greyish or orange; flank near the crotch with a distinct black region between two creamy white patches, and the thigh having a similar black patch near the groin, proximal to another creamy white patch; a distinct “) (”-shaped dark marking on the back; male with external single subgular vocal sac; nuptial pad absent. A phylogenetic tree was reconstructed based on the mitochondrial genes for 16S rRNA and ND1. The results indicated that these individuals form a monophyletic group, and show high genetic divergence to their closest relatives within the genus (uncorrected p-distances > 3.2%) by distance of 16S comparable to the divergence between recognized Raorchestes species. This study further enriches the diversity of rhacophorids, especially in northwestern Yunnan. 


Zootaxa ◽  
2018 ◽  
Vol 4504 (2) ◽  
pp. 253
Author(s):  
YAN-LI HU ◽  
BEI-XIN WANG ◽  
CHANG-HAI SUN

The adult male and larva of a new species in the genus Chimarra Stephens, Chimarra paramonorum n. sp., are described, diagnosed, and illustrated based on the specimens collected in Zhejiang Province, China. The larva and adult male were associated by mtCOI gene sequences. The male can be separated from C. monorum and C. thienemanni mainly by small preanal appendages and by wrinkled, hairless endotheca. The larva of the new species can be separated from other congeners by a combination of characters including the notch on the anterior margin of the frontoclypeus, the teeth of the mandibles, and the length of the seta-bearing process of each forecoxa. The larval description is the first for Chimarra in China. 


Zootaxa ◽  
2019 ◽  
Vol 4711 (2) ◽  
pp. 275-292
Author(s):  
GUOHUA YU ◽  
HONG HUI ◽  
MIAN HOU ◽  
ZHENGJUN WU ◽  
DINGQI RAO ◽  
...  

We describe a new species of Zhangixalus from southern Yunnan of China, Vietnam, and Thailand based on morphological and molecular evidence. The new species had been confused with Zhangixalus smaragdinus (Blyth, 1852) in the past. Zhangixalus pachyproctus sp. nov. can be distinguished from Z. smaragdinus morphologically by the protruding vent in adult males, large thick grey reticular mottles below the white stripe on flank, more oblique snout in profile and wider head, longer snout, greater internarial distance, larger tympanum and longer hindlimb. The new species can be distinguished from other species of Zhangixalus with green dorsum by the following combination of characters: body size larger (SVL of adult males: 74.2–83.3 mm; SVL of adult female: 102.4 mm); dorsum smooth; narrow white stripes along edge of the lower jaw, body sides, outer side of limbs and above the vent; absence of brown bands on canthus rostralis, upper eyelid and supratympanic fold; webbing between fingers and toes complete except between the first two fingers; and internal single subgular vocal sac. Phylogeny based on comparison of 16S rRNA sequences suggests that the new species is the sister taxon to Z. smaragdinus and the two species differ by 7.63% in the uncorrected pairwise distance of 16S sequences. 


2021 ◽  
Vol 5 (2) ◽  
pp. 177-187
Author(s):  
Lourdes Y. Echevarría ◽  
Pablo J. Venegas ◽  
Luis A. García-Ayachi ◽  
Pedro M. Sales Nunes

We describe a new species of Selvasaura from the montane forests of the eastern slopes of the Andes in northern Peru, based on external and hemipenial morphological characters and previous phylogenetic analyses. The new species can be differentiated from the other two Selvasaura species in having keeled dorsal scales usually flanked by longitudinal striations, in adults and juveniles; adult males with a yellow vertebral stripe bordered by broad dark brown stripes on each side and a unilobed hemipenis surrounded by the branches of the sulcus spermaticus. The description of the new species contributes information about new states of diagnostic characters of Selvasaura and natural history.


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