A new species of Augustinus Korotyaev from China, with a key to the species groups of the genus (Coleoptera: Curculionidae: Ceutorhynchinae)

Zootaxa ◽  
2008 ◽  
Vol 1871 (1) ◽  
pp. 63 ◽  
Author(s):  
JUNHAO HUANG ◽  
HIRAKU YOSHITAKE ◽  
RUNZHI ZHANG ◽  
MOTOMI ITO

Augustinus tuberculatus Huang, Yoshitake & Zhang, sp. n., is described from Guizhou Province, southwestern China. The species is readily distinguishable from its congeners by the prothorax having five pairs of tubercles in addition to paired median prominences. We classify the species into a new species group, the A. tuberculatus group, based mainly on the basally convex rostrum, elytral interval 1 with a velvety black scaly patch in the basal 1/3, interval 3 with a large obtuse tubercle in the middle (with 1–3 rows of setiferous granules), the posterior margin of ventrite 2 angularly produced in the middle and the anterior and posterior margins of ventrite 4 equidistant along their entire length. A key to the species groups of Augustinus is provided.

Zootaxa ◽  
2021 ◽  
Vol 4942 (4) ◽  
pp. 583-591
Author(s):  
FABIANO STEFANELLO

The giant water bug fauna from tropical South America remains poorly known. Three species of Belostoma Latreille (Belostoma fittkaui De Carlo, B. sayagoi De Carlo and B. hirsutum Roback & Nieser) have been cited only a few times in the literature. These three species are remarkable since they represent an extreme variation for the genus, with article II of the labium distinctly shorter than article III. Here, the synonymy of B. hirsutum with B. sayagoi is proposed based on examination of type material and additional specimens. Further, B. fittkaui and B. sayagoi are redescribed, including discussion about comparative morphology with congeners. A new species group is proposed for these species and a key to the Belostoma species groups is provided. Distribution records are also updated. 


Zootaxa ◽  
2021 ◽  
Vol 4970 (3) ◽  
pp. 558-568
Author(s):  
ANTON V. VOLYNKIN

The Cyana phaedra (Leech, 1889) species-group is reviewed. The group is closely related to the C. dohertyi (Elwes, 1890) species-group. A new species, C. leechi sp. nov. is described from Sichuan, southwestern China. Bizone phaedra var. moupinensis Leech, 1899 is upgraded to species level: C. moupinensis (Leech, 1899), stat. nov. The lectotype is designated for Bizone phaedra Leech, 1889. 


Zootaxa ◽  
2019 ◽  
Vol 4679 (2) ◽  
pp. 341-352
Author(s):  
TATIANA M. TIUNOVA ◽  
ALEXANDER A. SEMENCHENKO

A new species, Baetis pentaphyllus sp. nov., is described on the basis of larvae from the Far East of Russia (type locality Bolshoi Garmakan River). Larvae of Baetis pentaphyllus sp. nov. may be distinguished from other Baetis species by the presence of only five pairs of tergalii on segments III–VII. The mitochondrial COI sequence obtained from the described species was compared with the data present in GeneBank and BOLD. The DNA barcodes allowed discrimination of B. pentaphyllus sp. nov. from other species of Baetis with available sequence data. The average interspecific K2P distances were 10–15%, which are values well above those associated with intraspecific variation. COI sequences as well as 36 morphological larval characters were analysed using Bayesian inference to relate the described species to the recognized species-groups of the Baetis genus. B. pentaphyllus sp. nov formed a sister clade to B. vardarensis + B. lutheri which belong to the Baetis lutheri species-group. 


Zootaxa ◽  
2020 ◽  
Vol 4718 (4) ◽  
pp. 470-480
Author(s):  
QING-BO HUO ◽  
YU-ZHOU DU

A new genus of family Perlodidae, Parisoperla Huo & Du, gen. nov. is described including two new species from Guizhou Province in southwestern China. Both sexes of the new genus are characterized by the posterior margin of tergum 10 with a sclerotized process. The male membranous aedeagus is covered ventrally by patches of fine spines. 


Zootaxa ◽  
2007 ◽  
Vol 1469 (1) ◽  
pp. 43-50
Author(s):  
GERNOT GEGINAT

Trechodes intermedia sp. nov. and T. kogelbergensis sp. nov. are described from South Africa. A third species, T. humeralis (Jeannel, 1930) comb.nov. is transferred to Trechosia Jeannel from the genus Cothresia Jeannel. All three species are macropterous, endemic to the South African Cape region, and together represent a new species group of the genus Trechosia. Keys to the species groups of the genus Trechosia and to the species of the new T. intermedia group are provided.


Zootaxa ◽  
2003 ◽  
Vol 183 (1) ◽  
pp. 1 ◽  
Author(s):  
CHAVALIT VIDTHAYANON ◽  
HEOK HEE NG

Acrochordonichthys gyrinus, a new species of akysid catfish belonging to the A. ischnosoma species group, is described from the Chao Phraya River drainage in Thailand. It can be distinguished from congeners by a concave posterior margin of the pectoral fin and the unique combination of the following characteristics: head depth 9.8–11.4% SL; dorsal to adipose distance 7.4–8.6% SL; body depth at anus 8.3–10.5% SL; maximum width of humeral process 16.3% its length; and anterior margin of anal fin and posterior margin of adipose fin straight. This species represents the northernmost distribution of the genus.


1992 ◽  
Vol 23 (1) ◽  
pp. 63-88 ◽  
Author(s):  
John T. Polhemus ◽  
Per Lindskog

AbstractA revised diagnosis of the genus Saldula Van Duzee based upon synapomorphic characters of male genitalia and hemelytral pigmentation patterns is given. According to this concept ca. 55% of the species World-wide currently assigned to Saldula will have to be transferred to other genera. Several new characters are employed in the definition of species and species groups. The species attributable to the pallipes species group are listed and supplemented by a brief overview of the taxonomic relationships of the Old World species. Saldula luteola sp. n. is described from coastal salt marshes on the Island of Djerba, Tunisia. It mainly appears in extremely depigmented morphs unparalleled elsewhere in the Saldidae and likely constitutes a sister-species of S. sardoa Filippi. The conspicuous intraspecific variation in body size and hemelytral pigmentation in S. palustris (Douglas), the closest relative of the former species, is depicted and briefly discussed. The descriptive accounts are accompanied by numerous photographic illustrations of somatic and genital characters.


ZooKeys ◽  
2020 ◽  
Vol 1008 ◽  
pp. 17-35
Author(s):  
Da-Jian Xu ◽  
Deng-Xu Li ◽  
Xiao-Zhuang Zheng ◽  
Zhao-Liang Guo

From a biodiversity survey of a subterranean habitat near Sinan County, Guizhou Province, southwestern China, a new atyid shrimp of the genus Caridina H. Milne Edwards, 1837, C. sinanensissp. nov. was discovered. The new species can be separated from other congeners based on a combination of characters including depigmentation in body and reduction of eyes, small pigment spot at the centre of the cornea, the shape of rostrum and the endopod of the 1st male pleopod, and the relatively longer appendix interna on the appendix masculina of the 2nd pleopod. Mitochondrial COI and 16S rRNA gene sequences also support the establishment of the new species. Information on the habitat, and the levels of threat are discussed to guide the conservation of C. sinanensissp. nov.


Zootaxa ◽  
2019 ◽  
Vol 4679 (2) ◽  
pp. 201-230 ◽  
Author(s):  
HAO YU ◽  
SHUQIANG LI

A further study of the spider genus Clubiona Latreille, 1804 from Xishuangbanna, Yunnan, China is presented. A total of ten species, eight of which new to science, are here addressed, raising from 18 to 27 the number of species of the genus known to the area. Clubiona didentata Zhang & Yin, 1998 is redescribed based on new specimens from type locality, with the first description of the female. C. kai Jäger & Dankittipakul, 2010 is newly recorded from China, and the female is reported for the first time. Seven of the new species here described belongs to four species groups: C. cochlearis sp. nov. (♂) and C. tiane sp. nov. (♂) from the C. corticalis species-group; C. tongi sp. nov. (♂♀) from the C. hystrix species-group; C. yueya sp. nov. (♂♀) and C. zhanggureni sp. nov. (♂) from the C. japonica species-group; and C. bicornis sp. nov. (♂) and C. subasrevida sp. nov. (♂♀) from the C. trivialis species-group. The eighth new species, C. jiandan sp. nov. (♂♀) is not readily assignable to any of the existing species groups. 


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