Three new species of the genus Proctotydaeus (Acari: Iolinidae) associated with Brazilian stingless bees

2020 ◽  
Vol 25 (6) ◽  
pp. 1032-1049
Author(s):  
Tairis Da-costa ◽  
Luana Fabrina Rodighero ◽  
Guilherme Liberato Da Silva ◽  
Jose Irving Monjarás-barrera ◽  
Betina Blochtein ◽  
...  

Proctotydaeus (Acari: Iolinidae) species live in bird nests, insect colonies, plants and barn straw, and comprise 17 species belonging to four subgenera. Here, we report three new species of Proctotydaeus mites living inside stingless bee colonies in Brazil. Proctotydaeus (Neotydeolus) lasaroi Da-Costa, Rodighero & Ferla sp. nov., Proctotydaeus (Oriolella) dorsoreticulatus Da-Costa, Rodighero & Ferla sp. nov. and Proctotydaeus (Oriolella) quadrifasciatae Da-Costa, Rodighero & Ferla sp. nov. are described and illustrated based on specimens collected from three species of stingless bees in the state of Rio Grande do Sul, Brazil.

Zootaxa ◽  
2021 ◽  
Vol 4970 (2) ◽  
pp. 257-292
Author(s):  
JORDAN TUPARAI TALHAFERRO ◽  
ALESSANDRA ANGÉLICA DE PÁDUA BUENO ◽  
MATEUS MARQUES PIRES ◽  
CRISTINA STENERT ◽  
LEONARDO MALTCHIK ◽  
...  

In this study, three new species of Hyalella (Crustacea: Amphipoda: Hyalellidae) are described based on specimens collected in wetlands located in three freshwater ecoregions (Southeastern Mata Atlântica, Tramandaí-Mampituba and Laguna dos Patos) of the southern Brazilian Coastal Plain (states of Rio Grande do Sul and Santa Catarina). Hyalella minuana n. sp. was recorded in the southernmost region of the state of Rio Grande do Sul. This species is characterized by presenting smooth body surface, epimeral plates not acuminated, nine serrate setae on the inner face of gnathopod 1, and peduncle of uropod 3 with four cuspidate setae with accessory seta and without plumose seta on the margin of the telson. Hyalella lagoana n. sp. was recorded in the northern region of Rio Grande do Sul and southern region of Santa Catarina. This species shows body surface smooth, epimeral plates not acuminated, nine serrate setae on the inner face of gnathopod 1, peduncle of uropod 3 with five cuspidate setae with accessory seta, and telson with six cuspidate setae with accessory seta without plumose seta on the margins. Hyalella sambaqui n. sp. was recorded in the state of Santa Catarina. This species is characterized by presenting smooth body surface, epimeral plates not acuminated, six serrate setae on the inner face of gnathopod 1, peduncle of uropod 3 with three cuspidate setae with accessory seta, and telson with three cuspidate setae with accessory seta and four plumose setae on the margin of the telson.                The new records elevates the known diversity of species of Hyalella in the Brazilian territory to 33 species (19 in the southern Brazilian region) and to 83 species in the Americas. 


2006 ◽  
Vol 4 (2) ◽  
pp. 127-146 ◽  
Author(s):  
Sven O. Kullander ◽  
Carlos A. Santos de Lucena

Six species of Crenicichla, three of which are new, are recognized from the Atlantic coastal rivers of souhteastern Brazil from the state of Bahia south to the state of Rio Grande do Sul: C. mucuryna (upper rio Mucuri, Minas Gerais), C. lacustris (from the rio Paraíba do Sul north to the rio Buranhem, Bahia), C. iguapina, new species (rio Ribeira de Iguape), C. tingui, new species (from the rio Itapocu to the rio Nhundiaquara drainage), C. maculata, new species (lagoa dos Quadros, rio Maquiné, Rio Grande do Sul to rio Itapocu, Santa Catarina drainages), and Crenicichla punctata (laguna dos Patos basin). Crenicichla biocellata is a synonym of C. lacustris; and also a secondary homonym of Sparus biocellatus, a synonym of C. saxatilis. Crenicichla dorsocellata is also a synonym of C. lacustris.


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.


2017 ◽  
Vol 92 (4) ◽  
pp. 514-519 ◽  
Author(s):  
M. Knoff ◽  
J.N. Santos ◽  
E.G. Giese ◽  
D.C. Gomes ◽  
Â.T. Silva-Souza

AbstractA new species of the genus Diomedenema, a spiruromorph nematode, collected from the lung of Spheniscus magellanicus (Sphenisciformes) found on the southern coast of the state of Rio Grande do Sul, Brazil, is described. The new species is differentiated from the only previously described species of the genus, D. diomedeae Johston & Mawson, 1952, by males possessing a set of caudal papillae with three pairs of precloacal, two pairs of adcloacal and one pair of postcloacal papillae; precloacal papillae with the papillae of the first two pairs being closer to each other than those of the third pair; a longer and pointed tail in males; and females with the vulva at mid-body. This is the first report of a nematode infecting the lung of a sphenisciforme host.


Crustaceana ◽  
2013 ◽  
Vol 86 (7-8) ◽  
pp. 802-819 ◽  
Author(s):  
Alessandra A. P. Bueno ◽  
Paula B. Araujo ◽  
Giovanna M. Cardoso ◽  
Kelly M. Gomes ◽  
Georgina Bond-Buckup

Two new freshwater species of amphipods from Brazil are described here. Hyalella xakriaba n. sp. occurs in the hydrographic basin of the São Francisco River, in a biome characterized by a semiarid climate, in the state of Minas Gerais. This new species constitutes the northernmost record of the genus in Brazil. Hyalella kaingang n. sp. occurs in the hydrographic basin of the Mampituba River, located in Rio Grande do Sul, the southernmost state in Brazil. Currently 14 species of Hyalella are known in Brazil, cave species among them. Some morphological characters and their respective states are analyzed, and constitute an important new tool for species identifications. In particular, we describe the cuticular structures, defined as denticles, on the distal inner margin of the carpus of gnathopods 1 and 2. These structures may have a polygonal pattern or appear as comb scales, and may be arranged in one or more rows.


2013 ◽  
Vol 39 (7) ◽  
pp. 580-586 ◽  
Author(s):  
Liana Johann ◽  
Gervásio Silva Carvalho ◽  
Matheus dos Santos Rocha ◽  
Noeli Juarez Ferla

Check List ◽  
2016 ◽  
Vol 12 (2) ◽  
pp. 1867 ◽  
Author(s):  
Karine O. Bonato ◽  
Clarice B. Fialho

The streams in the state of Rio Grande do Sul (mainly in the Alto Jacuí sub-basin belonging to the Laguna dos Patos system) have scarce information about their ichthyofauna. Thereby for providing information about stream species, the purpose of the present study was to inventory the ichthyofauna of the streams of the Alto Jacuí sub-basin, located in northwestern state of Rio Grande do Sul. The samples were taken bimonthly from June 2012 to June 2013 using electrofishing technique in 10 streams. A total of 13,247 specimens were collected belonging to 42 species, 10 families and six orders. We report the occurrence of five new species that have not yet been described by researchers.


2014 ◽  
Vol 59 (4) ◽  
Author(s):  
Moisés Gallas ◽  
Cláudia Calegaro-Marques ◽  
Suzana Amato

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.


Zootaxa ◽  
2007 ◽  
Vol 1485 (1) ◽  
pp. 43-49 ◽  
Author(s):  
RAFAEL PREZZI INDICATTI ◽  
SYLVIA MARLENE LUCAS ◽  
ANTONIO DOMINGOS BRESCOVIT

Xenonemesia otti n. sp. (Microstigmatidae) is described from Viamão and X. platensis Goloboff newly recorded for the first time from Caçapava do Sul, both in the State of Rio Grande do Sul, Brazil.


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