Digenean parasites of the great antshrike, Taraba major (Aves: Thamnophilidae), from Argentina, with a description of a new species of the genus Strigea (Strigeidae)

During a survey of birds from Argentina, two species of Digenea, one of them new, were found parasitizing the great antshrike, Taraba major (Vieillot) (Aves: Thamnophilidae). The strigeid, Strigea orbiculata sp. n. is characterized by having a body plump, a copulatory bursa without a membraneous fol...

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Autores principales: Lunaschi de Redolatti, Lía Inés, Drago, Fabiana Beatriz
Formato: Articulo
Lenguaje:Inglés
Publicado: 2013
Materias:
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/85087
Aporte de:
id I19-R120-10915-85087
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Naturales
Birds
Dicrocoeliidae
Digenea
Lyperosomum oswaldoi
Passeriformes
South America
Strigea orbiculata sp. n.
Taxonomy
spellingShingle Ciencias Naturales
Birds
Dicrocoeliidae
Digenea
Lyperosomum oswaldoi
Passeriformes
South America
Strigea orbiculata sp. n.
Taxonomy
Lunaschi de Redolatti, Lía Inés
Drago, Fabiana Beatriz
Digenean parasites of the great antshrike, Taraba major (Aves: Thamnophilidae), from Argentina, with a description of a new species of the genus Strigea (Strigeidae)
topic_facet Ciencias Naturales
Birds
Dicrocoeliidae
Digenea
Lyperosomum oswaldoi
Passeriformes
South America
Strigea orbiculata sp. n.
Taxonomy
description During a survey of birds from Argentina, two species of Digenea, one of them new, were found parasitizing the great antshrike, Taraba major (Vieillot) (Aves: Thamnophilidae). The strigeid, Strigea orbiculata sp. n. is characterized by having a body plump, a copulatory bursa without a membraneous fold ('Ringnapf'), entire testes, eggs with miracidia with eye-spots, by the arrangement of vitelline follicles in the forebody, which are densely distributed from its anterior edge, and by the absence of a neck region in the hindbody. Among the known Neotropical species of Strigea Abildgaard, 1790, only five share with Strigea orbiculata sp. n. the body shape and the distribution of vitelline follicles in the forebody: Strigea caluri Dubois, 1962, S. elliptica (Brandes, 1888), S. inflecta Lunaschi et Drago, 2012, S. nugax Szidat, 1928 and S. sphaerocephala (Westrumb, 1823 nec Brandes 1888). However, S. caluri can be easily distinguished by having a membraneous fold in the copulatory bursa originated from 'Ringnapf', and multilobed testes. Strigea elliptica differs mainly by having a well developed 'Ringnapf' and the remaining species differ principally by metrical characters. The dicrocoeliid, Lyperosomum oswaldoi (Travassos, 1919) is reported for the first time from Argentina and T. major represents its new definitive host. The host specificity of Neotropical Strigea spp. is discussed and an updated list of records of their hosts is provided.
format Articulo
Articulo
author Lunaschi de Redolatti, Lía Inés
Drago, Fabiana Beatriz
author_facet Lunaschi de Redolatti, Lía Inés
Drago, Fabiana Beatriz
author_sort Lunaschi de Redolatti, Lía Inés
title Digenean parasites of the great antshrike, Taraba major (Aves: Thamnophilidae), from Argentina, with a description of a new species of the genus Strigea (Strigeidae)
title_short Digenean parasites of the great antshrike, Taraba major (Aves: Thamnophilidae), from Argentina, with a description of a new species of the genus Strigea (Strigeidae)
title_full Digenean parasites of the great antshrike, Taraba major (Aves: Thamnophilidae), from Argentina, with a description of a new species of the genus Strigea (Strigeidae)
title_fullStr Digenean parasites of the great antshrike, Taraba major (Aves: Thamnophilidae), from Argentina, with a description of a new species of the genus Strigea (Strigeidae)
title_full_unstemmed Digenean parasites of the great antshrike, Taraba major (Aves: Thamnophilidae), from Argentina, with a description of a new species of the genus Strigea (Strigeidae)
title_sort digenean parasites of the great antshrike, taraba major (aves: thamnophilidae), from argentina, with a description of a new species of the genus strigea (strigeidae)
publishDate 2013
url http://sedici.unlp.edu.ar/handle/10915/85087
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