Description of a new species of Nannopus Brady, 1880 (Copepoda: Harpacticoida: Nannopodidae) from Argentinean waters, including an updated key to species

Zootaxa ◽  
2021 ◽  
Vol 5051 (1) ◽  
pp. 506-528
Author(s):  
MICHEL SCIBERRAS ◽  
NÉSTOR J. CAZZANIGA ◽  
RONY HUYS

Both sexes of a new brackish-water species, Nannopus sinusalbi sp. nov. (Nannopodidae) are described from the Bahía Blanca estuary (38°53’S, 62°07’W) in Buenos Aires Province, Argentina. The only previous record of the genus in the study area was identified as the type species, Nannopus palustris Brady, 1880, with no description or illustrations, hence its authenticity cannot be confirmed. Nannopus brasiliensis Jakobi, 1956 is relegated to species inquirenda in the genus rather than being considered a junior synonym of the type species. Nomenclatural issues related to the usage of the alternative spellings Iliophilus Lilljeborg, 1902 and Ilyophilus sensu Sars (1909) and the unavailability of Ilyophilus canui Kim, Choi & Yoon, 2017 are discussed. An updated key to the 18 identifiable species of Nannopus (excluding the type species N. palustris) is presented. The harpacticoid assemblage at the type locality showed a distinct seasonality with N. sinusalbi sp. nov. representing about 8% of the community. The new species showed densities below 5 ind.cm‑2 during most of the year, reaching an abrupt peak of 40.17 ind.cm‑2 towards the end of the summer, when the maximum proportion of ovigerous females was recorded.  

Zootaxa ◽  
2021 ◽  
Vol 5051 (1) ◽  
pp. 423-442
Author(s):  
LIN MA ◽  
QING HE LIU ◽  
XIN ZHENG LI ◽  
RONY HUYS

Both sexes of a new species, Stylicletodes wellsi sp. nov. (Harpacticoida: Cletodidae), are described from material collected from sediments in the East China Sea. The new species belongs to a species group whose members are characterized by an anal operculum that has a backwardly directed, median linguiform process and fifth legs that display naked or sparsely pinnate armature elements in both sexes. Within this group, S. wellsi sp. nov. is morphologically closest to S. reductus Wells, 1965 but differs primarily from its European congener in the armature pattern of P4 (both rami) and the female P5. Distribution records of all species are summarized and an updated identification key to the seven valid species in the genus is presented. Taxonomic issues related to the type species S. longicaudatus (Brady, 1880) are briefly discussed.  


Zootaxa ◽  
2008 ◽  
Vol 1818 (1) ◽  
pp. 56
Author(s):  
SERGUEI V. TRIAPITSYN ◽  
DANIEL A. AQUINO

The little known Neotropical genus Polynemula Ogloblin (Mymaridae) and its type species P. rufosignata Ogloblin are redescribed based on the type material and a recently collected female specimen from Buenos Aires Province, Argentina. A new species of Polynema Haliday from the newly defined pallidiventre species group of Polynema (Doriclytus Foerster), P. (D.) nupogodi sp. n., is described from Argentina and the only other species in this new group, P. (D.) pallidiventre (Ogloblin), is redescribed. A key to the two species of this group is provided.


Zootaxa ◽  
2012 ◽  
Vol 3570 (1) ◽  
pp. 1 ◽  
Author(s):  
ALLAN H. SMITH-PARDO ◽  
GREGORY A. EVANS ◽  
JOHN W. DOOLEY

The taxonomy of the genus Chrysomphalus Ashmead (Diaspididae: Aspidiotinae) is reviewed. A new monotypic genus of armored scale, Pentalaminaspis Smith-Pardo, Evans and Dooley, is described and illustrated with Chrysomphalus minutus Kotinsky, 1908 as the type species. A new species, Chrysomphalus nepenthivorus Smith-Pardo, Evans & Dooley, is described and illustrated. This species was intercepted at a U.S. port of entry on hybrids of pitcher plants (Nepenthes) originating from Thailand. Chrysomphalus greeni Leonardi, 1914 is transferred to the genus Melanaspis and Chrysomphalus degeneratus Leonardi, 1896 is transferred to the genus Diaspidiotus. A discussion and key to species of the genus Chrysomphalus are provided as well as a key to aspidiotine genera similar to Chrysomphalus.


Zootaxa ◽  
2020 ◽  
Vol 4759 (1) ◽  
pp. 113-131 ◽  
Author(s):  
FRANCESC MESQUITA-JOANES ◽  
JOSEP A. AGUILAR-ALBEROLA ◽  
FERRAN PALERO ◽  
JUAN RUEDA

The genus Cypris, considered the oldest ostracod generic name erected using the Linnean system, comprises a reduced number of large-bodied species, mostly found in Africa and Asia. Only six of them are known to occur in Europe. Here we describe a new species, Cypris pretusi sp. nov., collected in small temporary streams and ponds along the Eastern Iberian Peninsula and Minorca (Balearic Islands). The new species is very close to the type species of the genus, Cypris pubera O.F. Müller, 1776, but differs from it in having a set of smaller subequal spines on the posterior edge of the valves, by the absence of conspicuous spines along the front edge, and by the beak-like frontal shape of its carapace in dorsal view, similar to Cypris decaryi Gauthier, 1933. Soft parts are very similar to the type species, but it differs in having shorter swimming setae on the second antennae. Molecular analyses of the COX1 region support its status as a species distinct from C. pubera and closer to Cypris bispinosa Lucas, 1849, also providing evidence for a separation of C. pubera s.l. in two clades, one of which is here considered to correspond to Cypris triaculeata Daday, 1892. We discuss the relationships of C. pretusi sp. nov. to other members of the genus and its possible origin from nearby biogeographic regions (probably Africa or Asia) and provide a key to species of Cypris found in Europe. We also discuss the relationship between Monoculus concha pedata (= M. conchaceus), the first ostracod named by Linnæus, and Cypris pubera, the type species of the genus, described by Müller in 1776 and considered by him the same species as the one first named by Linnæus. 


ZooKeys ◽  
2018 ◽  
Vol 760 ◽  
pp. 73-88
Author(s):  
Ko Tomikawa ◽  
Kentaro Hirashima ◽  
Atsushi Hirai ◽  
Ryu Uchiyama

A new brackish-water species of melitid amphipod,Melitachoshigawaensis, from the Choshigawa River, Mie Prefecture, Japan, is named and described.Melitachoshigawaensissp. n.is distinguished from the most similarM.shimizui(Uéno, 1940) by having an elongate and weakly arched male uropod 3, and a deep and strongly hooked anterior lobe of the coxa on the female’s pereopod 6. Nucleotide sequences of the mitochondrial cytochromecoxidase subunit I (COI) ofM.choshigawaensisandM.shimizuisupport divergence at the species level. A key to the Japanese species ofMelitais provided.


Zootaxa ◽  
2021 ◽  
Vol 4963 (2) ◽  
pp. 354-364
Author(s):  
ZHUO CHEN ◽  
HU LI ◽  
WANZHI CAI

The thread-legged bug genus Proguithera Wygodzinsky, 1966 is recorded from China for the first time, and a new species, P. caspersi sp. nov., is described and illustrated. The new species is cavernicolous and was collected on the walls of a cave together with another emesine species Myiophanes tipulina Reuter, 1881. The type species of the genus, P. drescheri (Wygodzinsky, 1966), is re-diagnosed based on the examination of the holotype. An updated key to species of the Guithera–Lutevula genus group is provided.


Zootaxa ◽  
2012 ◽  
Vol 3161 (1) ◽  
pp. 67 ◽  
Author(s):  
PÉTER BORZA

The representative of the genus Jaera Leach inhabiting continental waters throughout Europe has a rather complex taxonomic history. After discovering it in the River Tisza, Hungary, Dudich (1930) identified it as Jaera nordmanni (Rathke). This emerged to be a mistake, as the species was found to be identical with the subsequently described Jaera sarsi Valkanov (Kesselyák 1938). On the contrary, Veuille (1979) argued that the freshwater form is different from the brackish water species J. sarsi, and described it as a new species, J. istri Veuille, 1979. The new terminology has become widely used; however, recently the concept received criticism, implying that the characteristics distinguishing J. istri from J. sarsi fall within the confines of intraspecific variability (Tobias et al. 2005). Here I tentatively accept the latter point of view, and will refer to the species as J. sarsi in the following, but I also wish to point out that this matter could be settled using molecular methods.


Phytotaxa ◽  
2019 ◽  
Vol 401 (4) ◽  
pp. 276
Author(s):  
KATARINA CAPUT MIHALIĆ ◽  
MARIJA GLIGORA UDOVIČ ◽  
INES GALOVIĆ ◽  
IGOR STANKOVIĆ ◽  
MIRELA ŠUŠNJARA ◽  
...  

The genus Amphora sensu lato was considered highly heterogeneous for a long time. Modern microscopy and molecular analyses revealed significant differences in cell morphology and structure, thus suggesting polyphyly of the genus. New findings resulted in separation and description of several amphoroid genera. Recently, the genus Tetramphora Mereschkowsky was re-established based on ultrastructural and molecular analyses. The genus is widely spread in marine and brackish habitats. Recent observations of contemporary flora and cores from Lake Vransko (Croatia) revealed a new species of Tetramphora. The new species is characterized by having large semi-elliptical valves with arched dorsal margin and biarcuate ventral margin, length of 49.0–78.0 µm and width between 7.5–12.0 µm. The raphe is discontinuous, with proximal raphe ends externally covered with large siliceous flap. Striae are uniseriate, composed of small round to elongated areolae. Based on this unique combination of characters visible on light and scanning electron microscope, a new species Tetramphora croatica sp. nov. is described.


Zootaxa ◽  
2018 ◽  
Vol 4388 (4) ◽  
pp. 526 ◽  
Author(s):  
JIU TANG ◽  
YALIN ZHANG

The leafhopper genus Hylica Stål is reported from China for the first time with its type species H. paradoxa Stål; the male genitalia and the female ovipositor are described and illustrated for the first time. A new species, H. scutealba sp. n., from India is described and illustrated. A key to species of Hylica is provided. H. paradoxa is also recorded from Laos, Nepal, Thailand and Viet Nam for the first time. 


Zootaxa ◽  
2010 ◽  
Vol 2530 (1) ◽  
pp. 29 ◽  
Author(s):  
WENJIE ZHANG ◽  
XIAOSHUAN BAI ◽  
ERNST HEISS ◽  
WANZHI CAI

The aradid genus Yangiella Hsiao is reviewed. Two species are recognized. The type-species, Y. mimetica Hsiao, is redescribed and the new species, Y. montana Zhang, Bai, Heiss & Cai, is described. A key to species is given and the diagnostic morphological features of the two species are illustrated.


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