scholarly journals Two new charismatic Pristimantis species (Anura: Craugastoridae) from the tepuis of the "Lost World" (Pantepui region, South America)

2013 ◽  
Author(s):  
Philippe J.R. Kok
Keyword(s):  
New Species ◽  
South America ◽  
Conservation Status ◽  
Morphological Characters ◽  
Colour Pattern ◽  
Guiana Shield ◽  
Dorsal Skin ◽  
Skin Texture ◽  
Two New Species ◽  
Table Mountains

Two new colourful species of direct-developing frogs of the genus Pristimantis are described from the summit of two isolated tepuis (sandstone table mountains) in the Eastern Pantepui District of the Guiana Shield highlands. Pristimantis jamescameroni sp. nov. is described from the summit of Aprada-tepui from 2557-2571 m elevation, and P. imthurni sp. nov. is described from the summit of Ptari-tepui at 2471 m elevation. Both species share the absence of a differentiated tympanic membrane and external tympanic annulus (but presence of tiny pharyngeal ostia), the presence of nuptial pads in males, and the presence of lateral fringes on fingers and toes, a combination of characters that immediately distinguishes them from all other known Pantepui congeners. The two new species are morphologically similar to each other and are phylogenetically closely related, but they can be distinguished based on colour pattern and morphological characters such as head proportions, dorsal skin texture, and condition of the supratympanic fold. The IUCN conservation status of the new species is considered as Endangered (EN) owing to their apparent very restricted ranges. The number of described Pristimantis species occurring exclusively on tepui (and faunistically related granitic mountains) summits and upper slopes now reaches eleven.

Parakari a New Genus of the Family Baetidae (Insecta: Ephemeroptera) from Guyana Highlands

Zootaxa ◽  
2011 ◽  
Vol 3032 (1) ◽  
pp. 47 ◽  
Author(s):  
CAROLINA NIETO ◽  
TOMÁŠ DERKA
Keyword(s):  
New Species ◽  
South America ◽  
New Genus ◽  
The Other ◽  
Obtuse Angle ◽  
Diverse Families ◽  
The Family ◽  
Two New Species ◽  
High Level ◽  
Table Mountains

Baetidae is one of the most diverse families of Ephemeroptera. In South America this family now encompasses 27 genera and more than 130 species. The Guyana region is known for its extraordinary diversity and high level of endemism, which is, above all, remarkable at the tops of the isolated flat-topped table mountains – tepuis. Recently various international speleological expeditions to Churí-tepui explored the cave systems of this mountain. Here we describe a new genus of Baetidae recently found during the mentioned expeditions to Churí-tepui and Auyán-tepui. Parakari n. gen. can be distinguish from the other genera of this family, among other characters, in the nymphs by the absence of abdominal gills I, tarsal claws with subapical denticle larger than the others, right mandible with prostheca bifid and pectinate and with incisors positioned in obtuse angle to mola area, lingua with a tuft of setae, segment II of maxillary palpi with a concavity and a hole apically and segment II of labial palpi with a strong distomedial projection. In the adults the hind wings are absent and genitalia with segment II of forceps with a constriction, segment III elongate and long. Two new species are included in this genus; each one was collected at different tepui. A key and illustrations are included.

scholarly journals Isoetes dubsii and Isoetes santacruzensis, two new species from lowland areas in South America

PhytoKeys ◽  
2019 ◽  
Vol 131 ◽  
pp. 57-67
Author(s):  
Jovani B. de S. Pereira ◽  
José Tasso F. Guimaraes ◽  
Maurício T. C. Watanabe
Keyword(s):  
New Species ◽  
South America ◽  
Current Knowledge ◽  
Conservation Status ◽  
Iucn Red List ◽  
Similar Species ◽  
Two New Species ◽  
Data Deficient ◽  
Iucn Red List Criteria ◽  
Brazilian Pantanal

Isoetes dubsiisp. nov. and I. santacruzensissp. nov., two new species from lowland areas in South America, are described, illustrated and compared to similar species. Isoetes dubsii can be distinguished from other species of the Brazilian Pantanal wetlands by a set of characters including leaves that are long, flexuous and trigonal in transverse section, tri-lobate stems, rudimentary velum, pustulate megaspores of 310‒390 µm diameter and laesurae of the megaspore at least four times wider than high. Isoetes santacruzensis has flexuous, filiform leaves, 0.4–0.8 mm wide at mid length and reaching up to 15 cm long, black or reddish-black sporangia, sclerified phyllopodia and sparsely verrucate megaspores of 320‒390 µm in diameter. We also include a key for species from the Brazilian Pantanal wetlands and Bolivia and spore images for all species that are discussed. Isoetes dubsii and I. santacruzensis are only known from their type localities and they may deserve special attention concerning their conservation status. However, based on our current knowledge on these species and according to IUCN Red List criteria, they are assessed here as data deficient (DD).

scholarly journals New records of Platynectes (s. str.) diving beetles from South America with description of two new species (Coleoptera: Dytiscidae: Agabinae)

2020 ◽  
pp. 437-447
Author(s):  
Andrew E. Z. Short ◽  
Cesar J. Benetti ◽  
Grey T. Gustafson
Keyword(s):  
New Species ◽  
South America ◽  
New Records ◽  
Species Group ◽  
Individual Species ◽  
Guiana Shield ◽  
Mato Grosso ◽  
Diving Beetles ◽  
Two New Species ◽  
Distributional Knowledge

Diving beetles in the genus Platynectes (s. str.) in South America are relatively large and charismatically colored, yet relatively rare in museum collections. Recent fieldwork in northern and central South America has resulted in the collection of hundreds of new specimens that substantially expand our distributional knowledge of the genus. Here, we provide new distributional records for Platynectes decemnotatus (Aubé, 1838), P. garciai Gustafson, Short & Miller, 2016, P. submaculatus (Laporte, 1835), and P. tafelbergensis Gustafson, Short & Miller, 2016. In addition, two new species were identified and described herein: Platynectes bicolor sp. nov. of the P. ornatifrons species group from Brazil (Goiás and Mato Grosso do Sul), and P. colombicus sp. nov. of the P. submaculatus species group from the Guiana Shield region of eastern Colombia. These new records suggest that Platynectes (s. str.) is likely widespread across the Brazilian and Guiana Shield regions of the continent, and that some individual species have substantial range sizes of nearly 2000 km. An updated key to the species groups of Neotropical Platynectes (s. str.) and to the species of P. submaculatus species group are provided.

Two new species of Tenomerga Neboiss from eastern Asia (Coleoptera: Cupedidae) 

Zootaxa ◽  
2018 ◽  
Vol 4526 (4) ◽  
pp. 531
Author(s):  
CHENG-BIN WANG ◽  
JIŘÍ HÁJEK
Keyword(s):  
New Species ◽  
Male Genitalia ◽  
Morphological Characters ◽  
Colour Pattern ◽  
Eastern Asia ◽  
Two New Species ◽  
First Time

Two new species of reticulated beetles (Cupedidae) are described: Tenomerga angulinota sp. nov. from Laos and T. helii sp. nov. from Sichuan, China. Important morphological characters of both new species are illustrated. T. angulinota sp. nov. can be easily recognized from all other Palaearctic-Oriental species by bifid anterior angles of pronotum; T. helii sp. nov. is in habitus very similar to widespread T. anguliscutis (Kolbe, 1886) and can be distinguished based on shape of pronotum, colour pattern of elytra and predominantly male genitalia. In addition, T. anguliscutis is for the first time recorded from Hainan and Jiangxi Provinces of China. 

Two new species of land flatworms and comments on the genus Pasipha Ogren & Kawakatsu, 1990 (Platyhelminthes: Continenticola)

Zootaxa ◽  
2012 ◽  
Vol 3583 (1) ◽  
pp. 1 ◽  
Author(s):  
ANA MARIA LEAL-ZANCHET ◽  
ILANA ROSSI ◽  
ANA LÚCIA RAMOS SEITENFUS ◽  
JULIANA ALVARENGA
Keyword(s):  
New Species ◽  
Body Length ◽  
Relative Position ◽  
Morphological Characters ◽  
Sympatric Species ◽  
Colour Pattern ◽  
Southern Brazil ◽  
Copulatory Apparatus ◽  
Two New Species

Two new species of Geoplaninae, Pasipha backesi Leal-Zanchet, Rossi & Seitenfus, sp. nov. and P. brevilineata Leal-Zanchet, Rossi & Alvarenga, sp. nov., from southern Brazil are described herein. The two new sympatric species can bedistinguished from each other by differences in colour pattern and the copulatory apparatus, especially regarding the pro-static vesicle. They show similar characteristics regarding the relative position of the ovaries and anteriormost testes inrelation to body length, the position where ovovitelline ducts emerge from the ovaries, pharyngeal morphology and gen-eral morphology of the copulatory apparatus. Comments on the most important morphological characters of the 22 speciesoriginally assigned to the genus Pasipha are presented in order to highlight the heterogeneity of the genus as well as fa-cilitate the comparative discussion of the new species. In addition, based on the current diagnosis of the genus, we propose the placement of G. cafusa into Pasipha.

Two new species of the subgenus Sabethinus of Sabethes (Diptera: Culicidae) from Costa Rica, first confirmation of members of the subgenus in Central America

Zootaxa ◽  
2018 ◽  
Vol 4429 (2) ◽  
pp. 269
Author(s):  
RALPH E. HARBACH
Keyword(s):  
New Species ◽  
Costa Rica ◽  
South America ◽  
Central America ◽  
Male Genitalia ◽  
Instar Larva ◽  
Morphological Characters ◽  
Fourth Instar ◽  
Fourth Instar Larva ◽  
Two New Species

Two new species of Sabethes subgenus Sabethinus (Diptera: Culicidae) from Costa Rica are formally named Sa. andreae and Sa. theresae. Descriptions consisting of differential and diagnostic morphological characters are provided for adults, male genitalia and fourth-instar larvae. The male genitalia and the fourth-instar larva and pupa of both species are illustrated. The species are compared with the four previously described species known to occur only in South America, i.e. Sa. idiogenes, Sa. intermedius, Sa. melanonymphe and Sa. xhyphydes. A new country record for Colombia is reported for Sa. xhyphydes and keys are provided to distinguish the adults and larvae of the six species. 

A Synopsis of Dicliptera (Acanthaceae) in Brazil, with the Description of Two New Species

2020 ◽  
Vol 45 (2) ◽  
pp. 340-348
Author(s):  
James Lucas da Costa-Lima ◽  
Earl Celestino de Oliveira Chagas
Keyword(s):  
New Species ◽  
South America ◽  
The State ◽  
Northeastern Brazil ◽  
Mato Grosso ◽  
The North ◽  
New Synonyms ◽  
Two New Species ◽  
Mato Grosso Do Sul ◽  
A New Species

Abstract—A synopsis of Dicliptera (Acanthaceae) for Brazil is presented. Six species are recognized: Dicliptera ciliaris, D. sexangularis, and D. squarrosa, widely distributed in South America; D. purpurascens, which ranges from the North Region of Brazil (in the state of Acre) to eastern Bolivia; D. gracilirama, a new species from the Atlantic Forest of northeastern Brazil; and D. granchaquenha, a new species recorded in dry and semideciduous forests in Bolivia and western Brazil, in the state of Mato Grosso do Sul. Furthermore, we propose new synonyms and designate lectotypes for eleven names. An identification key to the six accepted Dicliptera species in Brazil is provided.

New Findings on Scrophularia sect. Mimulopsis (Scrophulariaceae) from Iran

2019 ◽  
Vol 27 (4) ◽  
pp. 238-247
Author(s):  
Massoud Ranjbar ◽  
Narges Rahchamani
Keyword(s):  
New Species ◽  
Pollen Morphology ◽  
Conservation Status ◽  
Morphological Characters ◽  
Northern Iran ◽  
Distribution Maps ◽  
New Findings ◽  
Tehran Province ◽  
Micromorphological Characters ◽  
A New Species

Scrophularia dianatnejadii Ranjbar & Rahchamani, a new species from Tehran Province in northern Iran, is described and illustrated. It is closely related to S. amplexicaulis Benth. and shares with it some diagnostic morphological characters such as habit, plant indument, phyllotaxy, and corolla shape and color. Both species are placed in Scrophularia L. sect. Mimulopsis Boiss. Macro- and micromorphological characters of the two are examined and compared. Pollen morphology of these species is investigated using SEM. Detailed descriptions, illustrations, distribution maps, and conservation status of both species are provided.

Two new species of Impatiens (Balsaminaceae) from the Western Ghats, India

Phytotaxa ◽  
2018 ◽  
Vol 334 (3) ◽  
pp. 233 ◽  
Author(s):  
BINCE MANI ◽  
SINJUMOL THOMAS ◽  
S. JOHN BRITTO
Keyword(s):  
New Species ◽  
Western Ghats ◽  
Pollen Morphology ◽  
Conservation Status ◽  
Species Conservation ◽  
Diagnostic Characters ◽  
Two New Species ◽  
The Western Ghats

Impatiens saulierea and I. josephia, two new species, are described from the Western Ghats, India. The former is collected from Kakkayam, Kozhikode and the latter from Idukki, Kerala. A detailed description of both taxa along with diagnostic characters between allied species, conservation status, pollen morphology and colour photographs are provided.

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