Phthiraptera and Gamasida Parasites of Columbina picui (Temminck) (Columbiformes: Columbidae) in the State of Rio Grande do Sul, Southern Brazil

Thirty-two specimens of Columbina picui (picui ground-dove) were examined, and a collection of arthropods was made by washing the external surface of the body and the nasal cavity. The species in the order Phthiraptera found and their respective prevalences, mean abundance and mean intensity were: Columbicola passerinae (84.4%; 10.3; 12.2), Hohorstiella passerinae (21.9%; 0.7; 3.1) and Physconelloides eurysema (3.1%; 0.1; 2). The gamasid mites found in the birds and their respective prevalences, mean abundance and mean intensity were: Pellonyssus marui (31.3%; 1.2; 3.9), Ornithonyssus bursa (15.6%; 0.2. ;1.2) and Mesonyssus sp. (6.3%; 0.1; 1). Columbicola passerinae, H. passerinae, P. eurysema, O. bursa, P. marui and Mesonyssus sp. were recorded for the first time infecting C. picui in Brazil. Except for O. bursa, the other species are reported for the first time in the state of Rio Grande do Sul, Brazil.

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Semiaquatic bugs (Hemiptera, Heteroptera, Gerromorpha) from Rio Grande do Sul, southern Brazil

Check List ◽

10.15560/17.5.1323 ◽

2021 ◽

Vol 17 (5) ◽

pp. 1323-1343

Author(s):

Juliana Mourão dos Santos Rodrigues ◽

Oséias Martins Magalhães ◽

Evaldo Alves Joaquim Júnior ◽

José Ricardo Inacio Ribeiro ◽

Felipe Ferraz Figueiredo Moreira

Keyword(s):

Atlantic Forest ◽

New Records ◽

Rio Grande ◽

The State ◽

Southern Brazil ◽

Rio Grande Do Sul ◽

Pampa Biome ◽

First Time

Rio Grande do Sul (RS) is the southernmost state in Brazil and includes areas within the Pampa and Atlantic Forest biomes. The semiaquatic bugs (Hemiptera, Heteroptera, Gerromorpha) from RS are poorly known, with only 14 previously recorded species. We carried out two expeditions in this state, in 2002 and 2019, across 19 municipalities. Here, we provide new records for 19 species, of which 13 are recorded for the first time from the state, five have their distributions expanded, and one is recorded again from a same locality previously reported in the literature. Furthermore, 13 species were collected for the first time in the Pampa biome and one in the Atlantic Forest.

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New record and occurrence map of Tityus serrulatus Lutz & Mello, 1922 (Scorpiones, Buthidae) in the state of Rio Grande do Sul, southern Brazil

Check List ◽

10.15560/11.1.1556 ◽

2015 ◽

Vol 11 (1) ◽

pp. 1556 ◽

Cited By ~ 1

Author(s):

Conrado Mario da Rosa ◽

Arthur Diesel Abegg ◽

Leandro Malta Borges ◽

Gabriela S. S Bitencourt ◽

Rocco Alfredo Di Mare

Keyword(s):

Urban Area ◽

Central Region ◽

New Record ◽

Rio Grande ◽

The State ◽

Southern Brazil ◽

Rio Grande Do Sul ◽

Tityus Serrulatus ◽

First Time ◽

Santa Maria

The Brazilian scorpion Tityus serrulatus is recorded for the first time in the central region of Rio Grande do Sul, thus filling a gap of 567 km in its distribution. A specimen of the scorpion was collected in the urban area of the municipality of Santa Maria (29°43′51.31″ S, 053°48′5.74″ W) on 31 June 2014. A map was generated with the points of occurrence of the species in the state.

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Temnocephala lutzi Monticelli (Platyhelminthes, Temnocephalida) ectosymbiont on two species of Trichodactylus Latreille (Crustacea, Decapoda, Trichodactylidae) from southern Brazil

Revista Brasileira de Zoologia ◽

10.1590/s0101-81752005000400038 ◽

2005 ◽

Vol 22 (4) ◽

pp. 1085-1094 ◽

Cited By ~ 10

Author(s):

José F. R. Amato ◽

Suzana B. Amato ◽

Samantha A. Seixas

Keyword(s):

Silver Nitrate ◽

Rio Grande ◽

The State ◽

Southern Brazil ◽

Rio Grande Do Sul ◽

Lower Side ◽

Freshwater Crabs ◽

Silver Nitrate Staining ◽

Typical Shape ◽

First Time

Temnocephala lutzi Monticelli, 1913, ectosymbiont on brachyuran freshwater crabs of the genus Trichodactylus Latreille, 1828 is recorded for the first time in the State of Rio Grande do Sul, southern Brazil. Two hundred and seventy-nine crabs of two species were examined: 211 Trichodactylus panoplus (von Martens, 1869) and 68 Trichodactylus fluviatilis Latreille, 1828 of which 51 (24.17%) and 28 (41.17%) were positive for T. lutzi, respectively. Crabs of both species carried eggs fixed, exclusively, on the floor of the branchial chambers and/or on the lower side of the gills. Adult as well as young specimens were found inside and outside the branchial chambers. The temnocephalans were always devoid of body pigmentation, although they kept the red eye pigment undiluted in specimens fixed by formalin. The cirrus of T. lutzi showed the typical shape for the species, while the dorsolateral, post tentacular 'excretory' syncytial plates, demonstrated by two special techniques (silver nitrate staining and SEM), appeared with an elliptical shape and a central nephridiopore.

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A new species of Cacatuocotyle (Monogenea, Dactylogyridae) parasitizing two species of Astyanax (Ostariophysi, Characidae) in southern Brazil

Acta Parasitologica ◽

10.2478/s11686-014-0283-6 ◽

2014 ◽

Vol 59 (4) ◽

Cited By ~ 4

Author(s):

Moisés Gallas ◽

Cláudia Calegaro-Marques ◽

Suzana Amato

Keyword(s):

New Species ◽

Posterior Margin ◽

External Surface ◽

Accessory Piece ◽

Rio Grande ◽

The State ◽

Southern Brazil ◽

Rio Grande Do Sul ◽

New Host ◽

A New Species

AbstractA new species of Cacatuocotyle is described from the external surface of Astyanax aff. fasciatus and Astyanax jacuhiensis from Lake Guaíba, State of Rio Grande do Sul, Brazil. It differs from the other three species of the genus, recorded from Mexico and the State of Paraná, Brazil, by possessing an accessory piece with a long proximal portion, a U-shaped bar with irregular posterior margin in its midportion, and a haptor containing two circular thickenings with muscular anterior margins. Only one monogenean species, Urocleidoides astyanacis (= Characithecium costaricensis) was recorded for the host Astyanax aff. fasciatus, whereas none were known for A. jacuhiensis. This paper records a new host (A. jacuhiensis) for monogeneans in southern Brazil and extends southward with the geographical distribution of the genus Cacatuocotyle to the State of Rio Grande do Sul, Brazil.

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LOCAL BEEF PRODUCTION: WHAT RIO GRANDE DO SUL IS WAITING FOR?

Revista em Agronegócio e Meio Ambiente ◽

10.17765/2176-9168.2017v10n2p312-341 ◽

2017 ◽

Vol 10 (2) ◽

pp. 312 ◽

Cited By ~ 1

Author(s):

Tamara Esteves de Oliveira ◽

David Santos Freitas

Keyword(s):

Rio Grande ◽

The State ◽

The Other ◽

Southern Brazil ◽

Rio Grande Do Sul ◽

Beef Production ◽

Beef Demand ◽

Small Producers ◽

Santa Maria ◽

Very High

This research aims to verify the municipalities where it might be interesting to invest in a local beef production in the State of Rio Grande do Sul (RS), southern Brazil. The data analyzed combine the cattle units slaughtered and the estimated beef consumption in each municipality. These indicators were used to identify the capacity of each location to meet the local beef demand. This data were associated to the map of RS by the Quantum GIS 1.8 Lisboa software. The most prominent regions were located at the western frontier, at the southeast Campanha, and at the northeast mountain region of the State. The cattle units slaughtered produced at the municipalities of Aceguá, Pedras Altas, Machadinho, São Valentim, Quatro Irmãos and Sagrada Família is very high, surpassing the municipality’s capacity to absorb it. On the other hand, many municipalities have sufficient productions or little surplus to attend the local beef demand, such as Alegrete, in which a local beef production might benefit a higher number of small producers, but other municipalities also seem to have potential for assisting familiar farmers with this strategy such as Dom Pedrito, Bagé, Santa Maria and Pelotas.

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First report of Nematomystes scapteromi (Ganzorig, Oku, Okamoto, Malgor & Kamiya, 1999) Jiménez-Ruiz & Gardner, 2003 (Nematoda, Aspidoderidae) in Scapteromys tumidus Waterhouse, 1837 (Rodentia, Sigmodontinae) from southern Brazil

Check List ◽

10.15560/11.2.1607 ◽

2015 ◽

Vol 11 (2) ◽

pp. 1607

Author(s):

Leandro Ramos Duarte ◽

Moisés Gallas ◽

Eliane Fraga da Silveira ◽

Eduardo Périco

Keyword(s):

Rio Grande ◽

The State ◽

Southern Brazil ◽

Rio Grande Do Sul ◽

Intensity Of Infection ◽

Morphometric Traits ◽

Mean Intensity ◽

First Report ◽

The Mean

Prior to the present study, Nematomystes scapteromi (Ganzorig, Oku, Okamoto, Malgor & Kamiya, 1999) Jiménez-Ruiz & Gardner, 2003 had been reported in Scapteromys tumidus Waterhouse, 1837 from Uruguay. Here, eight specimens of S. tumidus were collected in southern Brazil and necropsied. The nematodes encountered were determined as N. scapteromi through their morphometric traits. Prevalence was 87.5% and the mean intensity of infection of 18.3 helminths/host. This is the first report of N. scapteromi parasitizing S. tumidus in the state of Rio Grande do Sul, Brazil.

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New species and new records of millipedes of the genus Rhinocricus Karsch, 1881 (Spirobolida: Rhinocricidae) from southern Brazil

Zootaxa ◽

10.11646/zootaxa.3172.1.4 ◽

2012 ◽

Vol 3172 (1) ◽

pp. 55 ◽

Cited By ~ 2

Author(s):

PATRÍCIA E.S. RODRIGUES ◽

RICARDO OTT ◽

EVERTON N.L. RODRIGUES

Keyword(s):

New Species ◽

New Records ◽

Rio Grande ◽

The State ◽

Southern Brazil ◽

Rio Grande Do Sul ◽

Single Male ◽

First Time

Until now no species of Rhinocricus have been described or registered for the state of Rio Grande do Sul, Brazil. In thiswork we describe and illustrate five new species of Rhinocricus from Rio Grande do Sul: R. itauba sp. nov., R. gauchussp. nov., R. guaritas sp. nov., and R. serranus sp. nov., described from specimens of both sexes, and R. vacariensis sp. nov.based on a single male. The species R. divaricatus, R. padbergi and R. serratus are registered for the first time for this state. A key to Rio Grande do Sul species is presented.

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Helminths Assemblage of the bare-faced ibis, Phimosus infuscatus (Lichtenstein, 1823) (Pelecaniformes: Threskiornithidae), in southern Brazil

Revista Brasileira de Parasitologia Veterinária ◽

10.1590/s1984-29612019001 ◽

2019 ◽

Vol 28 (1) ◽

pp. 40-46

Author(s):

Simone Scheer ◽

Carolina Silveira Mascarenhas ◽

Márcia Raquel Pegoraro de Macedo ◽

Gertrud Muller

Keyword(s):

Rio Grande ◽

Helminth Fauna ◽

Southern Brazil ◽

Rio Grande Do Sul ◽

Intensity Of Infection ◽

Mean Intensity ◽

Male Bird ◽

Significant Difference ◽

First Time ◽

Prevalent Species

Abstract Birds act as hosts for a variety of parasites, many of these are unreported. The literature provides scant information on the helminth fauna of Phimosus infuscatus. The presence of helminths were investigate in 28 birds from Pelotas, Capão do Leão, and Rio Grande in Rio Grande do Sul. The preparation and identification of helminths followed protocols. Prevalence (P%), mean intensity of infection (MII), and mean abundance (MA) were estimated. The following helminths were found: Hystrichis acanthocephalicus , Dioctophyme renale (larva), Porrocaecum heteropterum , Baruscapillaria sp., Aproctella carinii , Paradeletrocephalus minor, and Cyathostoma sp. (Nematoda); Echinostomatidae gen. sp., Tanaisia valida, and Athesmia sp. (Trematoda: Digenea) and Megalacanthus sp. (Cestoda). The most prevalent species were H. acanthocephalicus, P. heteropterum, Megalacanthus sp., and Echinostomatidae gen. sp. and Megalacanthus sp. had the highest MII and MA. There was a significant difference in the prevalence of H. acantocephalicus between female and male bird hosts. We report Echinostomatidae gen. sp., T. valida, Athesmia sp., Cyathostoma sp., A. carinii, P. minor, D. renale (larva), Baruscapillaria sp., and Megalacanthus sp. for the first time in P. infuscatus in Brazil.

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New locality records for Guerrerostrongylus zetta (Travassos, 1937) Sutton & Durette-Desset, 1991 (Nematoda: Heligmonellidae) parasitizing Oligoryzomys nigripes (Olfers, 1818) (Rodentia: Sigmodontinae) from southern Brazil

Check List ◽

10.15560/12.2.1861 ◽

2016 ◽

Vol 12 (2) ◽

pp. 1861 ◽

Cited By ~ 1

Author(s):

Daniela F. de Werk ◽

Moisés Gallas ◽

Eliane F. da Silveira ◽

Eduardo Périco

Keyword(s):

Morphological Traits ◽

Rio Grande ◽

First Record ◽

The State ◽

Southeastern Brazil ◽

Southern Brazil ◽

Rio Grande Do Sul ◽

Intensity Of Infection ◽

Mean Intensity

Guerrerostrongylus zetta had been found in a number of different species of rodents from northern and southeastern Brazil as well as Argentina. Between 2008 and 2010, specimens of Oligoryzomys nigripes (n = 14) were collected and necropsied. The nematodes encountered were identified as G. zetta due their morphological traits. Prevalence was 78%, with a mean intensity of infection of 5.63 helminths/host. This report fills in a lacuna in the known distribution of G. zetta, and provides the first record of this parasite in the state of Rio Grande do Sul, Brazil.

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Fritziana aff. fissilis (Miranda-Ribeiro, 1920) (Anura, Hemiphractidae): the first hemiphractid for the state of Rio Grande do Sul, southern Brazil

Check List ◽

10.15560/11.2.1594 ◽

2015 ◽

Vol 11 (2) ◽

pp. 1594 ◽

Cited By ~ 5

Author(s):

Ismael Franz ◽

Mateus Henrique Mello

Keyword(s):

New Records ◽

Rio Grande ◽

The State ◽

Southern Brazil ◽

Rio Grande Do Sul ◽

The Family ◽

First Occurrence ◽

First Time

The first occurrence of Fritziana aff. fissilis (Miranda-Ribeiro, 1920) in the state of Rio Grande do Sul, southern Brazil, is reported. The records were obtained near the sources of the Rio dos Sinos, municipality of Caraá, and extend the range of the species 140 km south from where it was previously known. The new records also represent the first time a species of the family Hemiphractidae is recorded in the state.

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