A revision of South American Myriophyllum (Haloragaceae) and its repercussions on some Australian and North American species.

Brunonia ◽  
1981 ◽  
Vol 4 (1) ◽  
pp. 27 ◽  
Author(s):  
AE Orchard
Keyword(s):  
New Species ◽  
New Zealand ◽  
North America ◽  
South America ◽  
South American ◽  
Isolated Populations ◽  
Minor Variant ◽  
The Status ◽  
Three New Species ◽  
A Minor

The three species of Myriophyllum occurring naturally in South America (M. aquaticum, M. quitense and M. mattogrossensis) are keyed and described. M. quitense is an earlier legitimate name for the plant generally known as M. elatinoides, a species until now thought to extend from South America into North America, New Zealand and Australia. Plants of 'M. elatinoides' in North America and Australia have been critically re-examined, and the status of closely related taxa has been reconsidered. It has been found that, in North America, M. quitense exists as two isolated populations in Arizona and Oregon. The status of M. spicatum, M. exalbescens and M. magdalenense, the three previously described species of the 'elatinoides' complex is discussed, and it is suggested that two varieties should be recognized, M. spicatum var. spicatum and M. spicatum var. exalbescens. M. magdalenense is considered to be a minor variant of M. spicatum var. spicatum. Aus- tralian plants known until now as M. elatinoides are shown to be distinct from M. quitense, and to constitute three new species, M. salsugineum, M. caput-medusae and M. porcatum, which are here described.

A revision of the genus Orchestia Leach, 1814 with the reinstatement of O. inaequalipes (K.H. Barnard, 1951), the designation of a neotype for Orchestia gammarellus (Pallas, 1776) and the description of three new species (Crustacea: Amphipoda: Talitridae: Talitrinae)

Zootaxa ◽  
2020 ◽  
Vol 4808 (2) ◽  
pp. 201-250
Author(s):  
ALAN A. MYERS ◽  
JAMES K. LOWRY
Keyword(s):  
New Species ◽  
North America ◽  
South America ◽  
Type Species ◽  
Pacific Coast ◽  
Species Group ◽  
Eastern North America ◽  
The Pacific ◽  
North Eastern ◽  
Three New Species

The amphipod genus Orchestia is revised. It now includes 10 species of which three are new: O. forchuensis sp. nov. from north-eastern North America and Iceland., O. perezi sp. nov. from Chile and O. tabladoi sp. nov. from Argentina. Orchestia inaequalipes (K.H. Barnard 1951) is reinstated. The type species of the genus, O. gammarellus is redescribed based on material from Fountainstown, Ireland and a neotype is established to stabilize the species. The species was originally described from a garden in Leiden, far from the sea. Its true identity is unknown and no type material exists. Orchestia gammarellus (Pallas, 1776) is shown to be a sibling species group with members in both hemispheres of the temperate Atlantic as well along the Pacific coast of South America. A hypothesis for the establishment of the current distribution of Orchestia species is presented that extends back to the Cretaceous. 

scholarly journals The youngest South American rhynchocephalian, a survivor of the K/Pg extinction

2014 ◽  
Vol 281 (1792) ◽  
pp. 20140811 ◽  
Author(s):  
Sebastián Apesteguía ◽  
Raúl O. Gómez ◽  
Guillermo W. Rougier
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
New Zealand ◽  
South America ◽  
Late Cretaceous ◽  
South American ◽  
New Taxon ◽  
Northern Patagonia ◽  
Extinction Event ◽  
New Form

Rhynchocephalian lepidosaurs, though once widespread worldwide, are represented today only by the tuatara ( Sphenodon ) of New Zealand. After their apparent early Cretaceous extinction in Laurasia, they survived in southern continents. In South America, they are represented by different lineages of Late Cretaceous eupropalinal forms until their disappearance by the Cretaceous/Palaeogene (K/Pg) boundary. We describe here the only unambiguous Palaeogene rhynchocephalian from South America; this new taxon is a younger species of the otherwise Late Cretaceous genus Kawasphenodon . Phylogenetic analysis confirms the allocation of the genus to the clade Opisthodontia. The new form from the Palaeogene of Central Patagonia is much smaller than Kawasphenodon expectatus from the Late Cretaceous of Northern Patagonia. The new species shows that at least one group of rhynchocephalians not related to the extant Sphenodon survived in South America beyond the K/Pg extinction event. Furthermore, it adds to other trans-K/Pg ectotherm tetrapod taxa, suggesting that the end-Cretaceous extinction affected Patagonia more benignly than the Laurasian landmasses.

A taxonomic revision of the South American species of Pseudocanthon Bates, 1887 (Coleoptera: Scarabaeidae: Scarabaeinae: Deltochilini)

Zootaxa ◽  
2021 ◽  
Vol 5027 (1) ◽  
pp. 61-86
Author(s):  
EVERTON E. NAZARÉ-SILVA ◽  
FERNANDO A.B. SILVA
Keyword(s):  
New Species ◽  
Literature Review ◽  
South America ◽  
Taxonomic Revision ◽  
Morphological Characters ◽  
Valid Species ◽  
South American ◽  
The South ◽  
South American Species ◽  
Three New Species

The South American species of Pseudocanthon Bates, 1887 (Coleoptera: Scarabaeidae: Scarabaeinae: Deltochilini) are reviewed. In this work, 10 valid species and two subspecies are recognized for the genus. Among these species, five are recorded in South America, including three new species: P. perplexus (LeConte, 1847), P. xanthurus (Blanchard, 1847), P. vazdemelloi new species, P. pantanensis new species, and P. chaquensis new species. A lectotype is designated for P. xanthurus (Blanchard, 1847). In this revision, each species is analyzed as follows: a detailed literature review, an identification key for the South American species, a diagnosis, descriptions, illustrations of key morphological characters, list of examined material, and geographic distribution.  

A new and most complete pampathere (Mammalia, Xenarthra, Cingulata) from the Quaternary of Bahia, Brazil

Zootaxa ◽  
2019 ◽  
Vol 4661 (3) ◽  
pp. 401-444 ◽  
Author(s):  
JORGE FELIPE MOURA ◽  
FLÁVIO GÓIS ◽  
FERNANDO CARLOS GALLIARI ◽  
MARCELO ADORNA FERNANDES
Keyword(s):  
New Species ◽  
North America ◽  
South America ◽  
Axial Length ◽  
Vertebral Column ◽  
Middle Miocene ◽  
The Other ◽  
South American ◽  
Great American Biotic Interchange ◽  
A New Species

Pampatheriidae is a group of South American native cingulates recorded from the Middle Miocene to the Early Holocene. These animals arrived in North America during the Great American Biotic Interchange. During the Quaternary, at least three genera existed: Tonnicinctus Góis, González Ruiz, Scillato-Yané and Soibelzon, Pampatherium Gervais and Ameghino, and Holmesina Simpson. They are differentiated mainly by craniodental and osteodermal characters. In this paper, we describe a new species of Holmesina from Bahia state, Brazil. Two well-preserved specimens possessing osteoderms associated with their skeletons enabled us to determine the genus and species more reliably. Holmesina cryptae sp. nov. differs from the other Quaternary pampatheres by having the simplest ornamental pattern of osteoderms, sharing characteristics between Pampatherium and Holmesina osteoderms and the most robust skull among the Holmesina species, however preserving the main synapomorphies of the genus. Moreover, the integrity of the remains of H. cryptae sp. nov. enabled us to describe elements of the hyoid apparatus, the clavicle, the entire vertebral column and the pelvis. It was also possible to measure its total axial length (2.2 m) more reliably, which is smaller than previously estimated for other pampatheres. Holmesina cryptae sp. nov. constitutes the sixth species of the genus, and it is the fourth in South America. 

A revision of Nearctic species of the genus Tropimenelytron Pace, 1983 (Coleoptera: Staphylinidae: Aleocharinae), a new genus for North America

Zootaxa ◽  
2002 ◽  
Vol 114 (1) ◽  
pp. 1 ◽  
Author(s):  
VLADIMIR I. GUSAROV
Keyword(s):  
New York ◽  
British Columbia ◽  
New Species ◽  
North America ◽  
New Genus ◽  
The Status ◽  
Three New Species

Nearctic species of the genus Tropimenelytron Pace, 1983, a new genus for North America, are revised. Redescription and illustrations are provided for distinguishing the genus Tropimenelytron from other related aleocharine genera. Three new species are described: T. americanum Gusarov, sp. n., from Indiana, Wisconsin, Iowa, Missouri, Ohio, Pennsylvania, New York, Connecticut and Quebec; T. robustum Gusarov, sp. n., from Oregon and British Columbia and T. californicum Gusarov, sp. n. from California. A key for identification of Nearctic species of Tropimenelytron is provided. The status of the genus Pelioptera Kraatz, 1957 is discussed. Pelioptera unica (Bernhauer, 1907) from Japan and P. peguana (Bernhauer, 1915) from Burma are transferred to Tropimenelytron.

THREE NEW SPECIES OF XYLOCORIS FROM NORTH AMERICA, AND A NOTE ON THE STATUS OF SPECIES IN THE GENUS SCOLOPOSCELIS FIEBER (HETEROPTERA: ANTHOCORIDAE)

1976 ◽  
Vol 108 (2) ◽  
pp. 193-198 ◽  
Author(s):  
Leonard A. Kelton
Keyword(s):  
New York ◽  
Electron Microscope ◽  
New Species ◽  
North America ◽  
The Status ◽  
Three New Species

AbstractThree new species of the genus Xylocoris Dufour are described: hirtus from Saskatchewan, Ontario, Quebec, and New York, pilipes from New York, and punctatus from Utah. A lectotype for Xylocoris discalis (Van Duzee) is designated. Scoloposcelis mississippensis Drake & Harris and S. occidentalis Drake & Harris are synonymized with S. flavicornis Reuter. Adults of new species are illustrated and electron microscope photographs of their osteolar canals, and that of flavicornis are included.

scholarly journals Anderemaeus (Acari, Oribatida)—overview, three new species from South America and reassessment of Anderemaeidae supported by ontogeny

Zootaxa ◽  
2019 ◽  
Vol 4647 (1) ◽  
pp. 241-289
Author(s):  
ROY A. NORTON ◽  
SERGEY G. ERMILOV
Keyword(s):  
New Species ◽  
South America ◽  
South American ◽  
Broad Concept ◽  
Two New Species ◽  
Generic Composition ◽  
Generic Description ◽  
Three New Species ◽  
Species Being

Anderemaeus is a genus of Gondwanan soil-dwelling oribatid mites with seven of the eight previously known species being South American. We propose two new species from Chile— A. sidorchukae sp. nov. and A. dentatus sp. nov.—and a third from Ecuador, A. mataderoensis sp. nov. Juveniles of the former two species are described, comprising the first such data for Anderemaeidae: nymphs notably lack both exuvial scalps and centrodorsal gastronotic setae, and the opisthonotal gland opens on a distinct stalk. The generic description is revised and expanded and a key to known species of Anderemaeus is presented, including A. tridactylus comb. nov. We reject the inclusion of Anderemaeus in a broad concept of Caleremaeidae and the implied subsumption of Anderemaeidae, as there are no synapomorphies linking the taxa. Anderemaeus species possess derived traits—e.g. adult with circumpedal carina and nymphs with smooth cuticle and no scalp retention—that are absent from Caleremaeus but are shared with more derived brachypyline taxa. The higher classification of Anderemaeus is reviewed: an analysis of known traits is inconclusive regarding both the generic composition of Anderemaeidae and its superfamilial relationships. However, on the strength of juvenile morphology, we propose the transfer of Anderemaeidae to Gustavioidea. 

scholarly journals Taxonomic revision of the New World members of the trapdoor spider genus Ummidia Thorell (Araneae, Mygalomorphae, Halonoproctidae)

ZooKeys ◽  
2021 ◽  
Vol 1027 ◽  
pp. 1-165
Author(s):  
Rebecca L. Godwin ◽  
Jason E. Bond
Keyword(s):  
New Species ◽  
North America ◽  
South America ◽  
New World ◽  
Taxonomic Revision ◽  
Junior Synonym ◽  
Taxonomic Treatment ◽  
Cosmopolitan Distribution ◽  
America South ◽  
Three New Species

This study documents a comprehensive taxonomic treatment of the New World Ummidia species. At the onset of this work the genus comprised 27 species and one subspecies with a cosmopolitan distribution that includes North America, South America, Asia, northern Africa, and Europe; of these species the majority of the nominal diversity can be attributed to the New World where 20 species have been previously described. Ummidia oaxacana (Chamberlin, 1925) is considered a nomen dubium; U. tuobita (Chamberlin, 1917) and U. absoluta (Gertsch and Mulaik, 1940) are both considered junior synonyms of U. audouini (Lucas, 1835); the subspecies U. carabivora emarginata (Atkinson, 1886) is considered a junior synonym of U. carabivora (Atkinson, 1886); U. pygmaea (Chamberlin and Ivie, 1945) is considered a junior synonym of U. beatula (Gertsch and Mulaik, 1940); U. celsa (Gertsch and Mulaik, 1940) is considered a junior synonym of U. funerea (Gertsch, 1936); Hebestatis lanthanus (Valerio, 1987) is considered a junior synonym of U. rugosa (Karsch, 1880). Thirty-three new species are described: U. neilgaimani, U. gingoteague, U. rongodwini, U. okefenokee, U. richmond, U. macarthuri, U. colemanae, U. rosillos, U. mercedesburnsae, U. paulacushingae, U. waunekaae, U. gertschi, U. timcotai, U. gabrieli, U. pesiou, U. rodeo, U. huascazaloya, U. anaya, U. cuicatec, U. brandicarlileae, U. riverai, U. frankellerae, U. hondurena, U. yojoa, U. matagalpa, U. carlosviquezi, U. varablanca, U. quepoa, U. cerrohoya, U. quijichacaca, U. tibacuy, U. neblina, U. tunapuna.

THREE NEW SPECIES OF APHIS (HEMIPTERA: APHIDIDAE) LIVING ON MULINUM (UMBELLIFERAE) IN SOUTH AMERICA

1999 ◽  
Vol 131 (3) ◽  
pp. 283-292 ◽  
Author(s):  
J.M. Nieto Nafría ◽  
J. Ortego ◽  
M.P. Mier Durante
Keyword(s):  
New Species ◽  
South America ◽  
South American ◽  
The South ◽  
Three New Species

AbstractAphis martinezi sp.nov. and Aphis paravanoi sp.nov. from Argentina and Aphis roberti sp.nov. from Argentina and Chile are described. These new species live on the South American plants of the genus Mulinum Persoon, 1805, as do Aphis mulini Hille Ris Lambers and Aphis mulinicola Hille Ris Lambers, which were previously described from Argentina. A key for the apterous viviparous females of these five species is given.

A new species of Polyamia DeLong (Hemiptera: Cicadellidae: Deltocephalinae: Deltocephalini) representing the first record of the genus from South America

Zootaxa ◽  
2018 ◽  
Vol 4457 (4) ◽  
pp. 557 ◽  
Author(s):  
YANI DUAN ◽  
CHRISTOPHER H. DIETRICH
Keyword(s):  
New Species ◽  
North America ◽  
South America ◽  
First Record ◽  
South American ◽  
South American Species ◽  
Species Checklist ◽  
A New Species

Polyamia (Polyamia) choromorica sp. n., representing the first record of the genus Polyamia DeLong from South America, is described and illustrated. Previously described species of Polyamia DeLong appear to be restricted to North America. Color illustrations of Polyamia (Copolyamia) caperata (Ball), Polyamia (Copolyamia) similaris DeLong & Davidson and Polyamia (Polyamia) weedi Van Duzee are also provided for comparison. A species checklist and distribution summary for the genus is provided. Notes on other South American species of Deltocephalini with supernumerary forewing crossveins are also provided.

Sign in / Sign up

Export Citation Format

Share Document