Mediorhynchus emberizae (Rudolphi, 1819)

Smales, L. R., 2014, Acanthocephala, including the descriptions of two new species of Mediorhynchus (Gigantorhynchidae) from birds from Paraguay, South America, Revue suisse de Zoologie 121 (2), pp. 261-276 : 265-266

Mediorhynchus emberizae (Rudolphi, 1819)

MATERIAL EXAMINED: MHNG-INVE-38392 ; 2 males, 2 females, small intestine, Cacicus chrysopterus (Vigors, 1825) (Icteridae) , Paraguay, Transchaco 293, 03.11.1988 . – MHNG- INVE-38419 ; 1 male, smallintestine, Picoides sp. (Picidae), Paraguay, PozoArias, 11.08.1996 . – MHNG-INVE-38440 ; 2 females, small intestine, Cyclarhis gujanensis (Gmelin, 1789) (Virionidae), Paraguay, PrattsGill, 01.08.1985 . – MHNG-INVE-38449 ; 4 females, smallintestine, Trichothraupismelanops (Vieillot, 1818) ( Thraupidae ), Paraguay, CFAP, 10.08.1984 . – MHNG-INVE-38452 ; pieces of 2 males, 3 females, small intestine, Progne chalybea (Gmelin, 1789) (Hirundinidae), Paraguay, Jejui, 08.10.1985.

COMMENTS: The proboscis armature, 20-22 rows of 5-6 hooks and 2-3 spines and comparative morphometrics were consistent with these specimens being M. emberizae (see Table 2 ). The geographical distribution of M. emberizae has been extended from Brazil to Paraguay and the host range from Paroaria dominicana, Ostinops decumanus, Brachispiza capensis, Cacicus haemorhous , Cacicus sp. , Heleodytes unicolor, Molothrus bonariensis, Pseudochloris cirtina and Rhamphocoelus sp. ( Travassos, 1924; Carvalho et al., 2008) to the passeriforms Cacicus chrysopterus, Cyclarhis gujanensis, Trichothraupis melanops, Progne chalybea and the piciform Picoides sp.