Estudo das espécies brasileiras do genêro Diplotriaena Henry & Ozoux, 1909 (Nematoda, Filarioidea)

Abstract

Vinte espécies do gênero Diplotriaena Henry & Ozoux, 1909 que ocorrem no Brasil, foram estudadas. A taxonomia desse grupo de nematódeos parasitos de aves é baseada na forma e tamanho dos tridentes e espículos. Para todas as espécies forma registradas suas dimensões, hospedeiros e distribuição regional, através de tabelas comparativas. Comentários a respeito de algumas espécies foram feitos, de modo a fornecer dados adicionais. É também apersentada uma chave para a determinação das espécies.<br>Twenty species of Diplotriaena Henry & Ozoux, 1909 that occur in Brazil were studied. The tasonomy of this group of nematode recovered from birds is based mainly on the shape and size of tridents and spicules. For all the species were resistered their dimentions, hosts and regional distribution, condensed in comparative tables. Comments on some of the species were made in order to provide complementary data. A key to Brazilian Diplotriaena is also given

Helminths of Molothrus bonariensis (Gmelin, 1789) (Passeriformes: Icteridae) from southernmost Brazil

“…Diplotriaena Railliet & Henry, 1909, has parasitic specificity restricted to birds and is distributed among Anseriformes, Apodiformes, Galliformes, Charadriiformes, Columbiformes, Piciformes and Passeriformes, with wide geographic distribution (VICENTE et al, 1983; ATKINSON et al, 2009).…”

“…In Brazil, approximately 60 species belonging to nine families of Passeriformes are affected by the action of the shiny cowbird. This species is entirely dependent on other bird species for its reproduction, because it has not only lost the ability to build its own nests but also the instinct of taking care of its offspring (BLANCO, 1995;SICK, 1997; EFE et al, 2001;MERMOZ & REBOREDA, 2003;ASTIÉ & REBOREDA, 2006).Regarding helminths in M. bonariensis in Brazil, there have been isolated reports of Lyperosomum oswaldoi (Travassos, 1919) (Trematoda: Dicrocoeliidae) (TRAVASSOS et al, 1969), Diplotriaena bargusinica Skrjabin, 1917 (Nematoda: Diplotriaenidae) (VICENTE et al, 1983) and Mediorhynchus emberizae (Rudolphi, 1819) (Acanthocephala: Gigantorhynchidae) (PETROCHENKO, 1971). In this context, the present study had the objective of reporting the presence of helminths associated with M. bonariensis.…”

“…Lunaschi et al (2015) redescribed Tanaisia dubia Freitas, in 1951, had created a key to the Neotropical species Tanaisia and a key to the Tanaisiinae genres that gives support in species (Vieillot, 1819) (Scolopacidae) in the same country. Tanaisia valida was identified in Charadrius wilsonia Ord, 1814 (Charadriidae) (n = 1) (P = 100%) (MI = 4) in Colombia (LUNASCHI et al 2015).About the life cycle of T. valida does not exist information, however considering the life cycle of Tanaisiinae, the birds become infected by ingesting (Mollusca: Gastropoda) containing metacercariae (LUNASCHI et al 2015).Diplotriaena Railliet & Henry, 1909, has parasitic specificity restricted to birds and is distributed among Anseriformes, Apodiformes, Galliformes, Charadriiformes, Columbiformes, Piciformes and Passeriformes, with wide geographic distribution (VICENTE et al, 1983; ATKINSON et al, 2009).In The biological cycle of S. (D.) nasuta is heteroxenous, using terrestrial isopods, orthopterans, beetles or millipedes (GOBLE & KUTZ, 1945). The larvae develop in non-specific tissues of isopods, in which they become encapsulated and are later on ingested by birds (ANDERSON, 2000).…”

Nematode Parasites of Brazilian Corvid Birds (Passeriformes): A General Survey with a Description of Viktorocara brasiliensis n. sp. (Acuariidae, Schistorophinae)

“…Remarks: this is a very common species, occurring in Brazilian Cuculiformes, Falconiformes and Piciformes hosts (Pinto et al 1994 350, 11,535, 11,552, 11,548, 11,794, 12,731, 13,199, 13,207 (wet material). Remarks: Diplotriaena americana has been reported in the same hosts investigated herein (Vicente et al 1983). …”

“…12,951(wet material). Remarks: Diplotriaena bargusinica has been illustrated and referred for the first time in Brazil by Vicente et al (1983), occurring in Icteridae and Fringilidae hosts. This is the first report of the species in a Corvidae bird.…”