A new species of Procyrnea (Nematoda: Habronematidae) parasitic in Rhea pennata (Aves: Rheidae) from Patagonia, Argentina, with a key to species of the genus

BAGNATO, E.; FRIXIONE, M.; DIGIANI, M.C.; CREMONTE, F.

J. HELMINTHOL.

Cambridge University Press

Año: 2018 vol. 92 p. 504 - 513

0022-149X

Procyrnea choique n. sp. is described from the lesser rhea, Rhea pennatad´Orbigny (Aves: Rheidae), from the Protected Natural Area Península Valdés,Chubut province, Argentina. The new species resembles P. ficheuri, P. murrayi,P. excisiformis, P. dollfusi, P. haliasturi, P. anterovulvata, P. graculae, P. brevicaudata, P. uncinipenis, P. javaensis, P. ameerae, P. ornata, P. aegotheles, P. spiralis, P. ruschii and P. aptera, mainly in the absence of lateral alae; but differs from its congeners by having a left spicule without barbs, the position of the vulva which is postequatorial, the absence of lateral ridges, absent median precloacal papilla, asymmetrical caudal alae, males more than 6mm long, left spicule 1mm long and spicule ratio 1:3. Our results extend the taxonomy of Procyrnea Chabaud, 1958 and comprise the first report of a habronematid from R. pennata. A key to species of Procyrnea is presented.