scholarly journals Phacus multifacies sp. nov., a new Euglenophyceae from the State of Rio Grande do Sul, Southern Brazil

Hoehnea ◽  
2018 ◽  
Vol 45 (1) ◽  
pp. 143-148
Author(s):  
Sandra Maria Alves-da-Silva ◽  
Carlos Eduardo de Mattos Bicudo

ABSTRACT As a result of the taxonomic survey of the pigmented Euglenophyceae of Lago da Ponte, an artificial pond located at the Porto Alegre Botanical Garden, State of Rio Grande do Sul, Southern Brazil and samples gathered later on from this same water body, a new species of Phacus (Euglenophyceae, Phacaceae), P. multifacies Alves-da-Silva & C. Bicudo, sp. nov., is here described and proposed as new to science. Cell displacement turning ventrally one full turn round itself and also rotating around its longitudinal axis and the presence of a dorsal wing-like expansion next to the caudal process are the main diagnostic features of the new species. Physical and chemical information on the pond water is presented.

2015 ◽  
Vol 87 (1) ◽  
pp. 15-27 ◽  
Author(s):  
José D. Ferreira ◽  
Martín Zamorano ◽  
Ana Maria Ribeiro

The genus Panochthus represents the last lineage of "Panochthini" recorded in the Pleistocene. This genus has a wide latitudinal distribution in South America, and in Brazil it occurs in the southern and northeastern regions. In this paper we describe new material (isolated osteoderms and caudal tube fragments) assigned to Panochthus from the state of Rio Grande do Sul (southern Brazil) and discuss some taxonomic issues related to Panochthus tuberculatus and Panochthus greslebini based on this material . The occurrence of P. greslebini is the first for outside the Brazilian Intertropical Region. In addition, we describe new diagnostic features to differentiate the osteoderms of P. greslebini and P. tuberculatus. Unfortunately, it was not possible to identify some osteoderms at the species level. Interestingly, they showed four distinct morphotypes characterized by their external morphology, and thus were attributed to Panochthus sp. Lastly, we conclude that in addition to P.tuberculatus registered to southern Brazil, there is another species of the genus, assignable to P. cf. P. greslebini. Our analysis reinforce the reliability of caudal tube characters for the classification of species of Panochthus.


Zootaxa ◽  
2016 ◽  
Vol 4175 (5) ◽  
pp. 487
Author(s):  
MARCOS CARNEIRO NOVAES ◽  
PITÁGORAS DA CONCEIÇÃO BISPO

Zootaxa ◽  
2007 ◽  
Vol 1447 (1) ◽  
pp. 1-26 ◽  
Author(s):  
MARCOS DI-BERNARDO ◽  
MARCIO BORGES-MARTINS ◽  
NELSON JORGE DA SILVA (Jr.)

A new species of triadal coralsnake (Micrurus) is described from Rio Grande do Sul, Brazil. The new species differs from other Micrurus species in southern Brazil by the following characters: snout mostly black, head completely black, white gular region, triads with middle black ring 1.5 to 2 times longer than the external black rings, white rings shorter than the external black rings.  The new species occurs sympatrically with M. altirostris and adds to the following known triadal species for the region: M. baliocoryphus, M. pyrrhocryptus, M. lemniscatus, and Micrurus decoratus. Its current range is restricted to Rio Grande do Sul but it may reach adjacent areas of Argentina and Paraguay.


Phytotaxa ◽  
2016 ◽  
Vol 289 (3) ◽  
pp. 271 ◽  
Author(s):  
SHIRLEY CUNHA FEUERSTEIN ◽  
NATÁLIA MOSSMANN KOCH ◽  
FABIANE LUCHETA ◽  
VERA MARIA FERRÃO VARGAS ◽  
ROSA MARA BORGES DA SILVEIRA

(A new species of Graphis [Graphidaceae: Lichenized Ascomycota] and a revised key of the genus in Rio Grande do Sul, southern Brazil). In this paper we describe a new species of the lichen genus Graphis, namely G. suzanae Koch & Feuerstein. This species is characterized mainly by lirellae with entire labia, a partially exposed disc with orange pigment in the epithecium, a lateral thalline margin, a laterally carbonized excipulum, a clear hymenium, and transversely septate ascospores measuring 40–44 × 8–10 μm. The chemistry of the species was assessed through TLC analysis. A complete key with G. suzanae and 56 more species of Graphis that where previously recorded to the state of Rio Grande do Sul, southern Brazil, is included.


2000 ◽  
Vol 21 (1) ◽  
pp. 39-55 ◽  
Author(s):  
Axel Kwet

AbstractA new species of Pseudis is described from São Francisco de Paula, Rio Grande do Sul, Brazil. It is known from the southern parts of the Serra Geral where it occurs in grassland, inhabiting permanent ponds and still-water zones of slow flowing creeks. It is characterized by a paired vocal sac and a bulbous thumb, considerably widened at the base. It is distinguished from P. minutus by its different call, body coloration, rounded snout, and a more robust body with shorter hindlimbs. Advertisement call, tadpole, and life history are described. The taxonomy of the family Pseudidae in Rio Grande do Sul is discussed, supporting the synonymy of Lysapsus mantidactylus and P. meridionalis with P. minutus.


Zootaxa ◽  
2006 ◽  
Vol 1126 (1) ◽  
pp. 63 ◽  
Author(s):  
PAULO S.F. FERREIRA ◽  
LÍVIA A. COELHO

The Resthenini genus Opistheurista has been known until now by the single species O. clandestina, which occurs in the Nearctic region. While studying mirids from Rio Grande do Sul, Brazil, we found a female exemplar as a new species. We provide descriptions, diagnoses, illustrations, and a key to distinguish the two species of genus Opistheurista.


Zootaxa ◽  
2017 ◽  
Vol 4290 (3) ◽  
pp. 559
Author(s):  
DARLAN RUTZ REDÜ ◽  
EDISON ZEFA

The aim of this work was to extend the taxonomic knowledge of the species of Anurogryllus Saussure, 1877 that occurs in the southern municipalities of Rio Grande do Sul State, Brazil. We found three different species, Anurogryllus tapes sp. nov. collected in municipalities of Canguçu and Capão do Leão, Anurogryllus patos sp. nov. from Capão do Leão and Anurogryllus toledopizai (de Mello, 1988) recorded from Canguçu, Capão do Leão e São Lourenço do Sul. Here we present the descriptions of morphology, male genitalia and calling songs. 


Phytotaxa ◽  
2015 ◽  
Vol 202 (2) ◽  
pp. 143 ◽  
Author(s):  
Henrique Mallmann Büneker ◽  
Rodrigo Corrêa Pontes ◽  
Leopoldo Witeck-Neto ◽  
Kelen Pureza Soares

Tillandsia leucopetala H. Büneker, R. Pontes & L. Witeck is an endemic saxicolous new species from Rio Grande do Sul, southern Brazil. It is described, illustrated and data about its geographic distribution and ecology are provided.


2009 ◽  
Vol 99 (3) ◽  
pp. 249-258 ◽  
Author(s):  
Michel P. Valim ◽  
Francine M. Lambrecht ◽  
Élvia E. S. Vianna

A collection of chewing lice was studied from the Natural History Museum of the Universidade Católica de Pelotas, Rio Grande do Sul, Brazil. Twenty three samples from 16 bird species were examined. Included therein was a new species of the genus Plegadiphilus Bedford, 1939 which is described, illustrated and compared to P. cayennensis Emerson & Price, 1969. An updated list of chewing lice species recorded from birds of that state is presented.


2020 ◽  
Vol 25 (12) ◽  
pp. 2224-2234
Author(s):  
Wesley Borges Wurlitzer ◽  
Liana Johann ◽  
Noeli Juarez Ferla ◽  
Guilherme Liberato Da Silva

Two new species of Cunaxidae from Brazilian Atlantic Forest biome are described. Lupaeus stolli Wurlitzer & Ferla sp. nov. was collected from Varronia curassavica Jacq. (Boraginaceae), in Santa Catarina state, and Rubroscirus grilloi Wurlitzer & Ferla sp. nov. from Vernonanthura tweediana (Baker) H. Rob., soil and leaf litter, in Rio Grande do Sul state, Brazil.


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