Redescription of Gyropus parvus (Ewing, 1924) (Insecta: Phthiraptera: Amblycera: Gyropidae) from Tucos-Tucos (Rodentia: Ctenomyidae: Ctenomys) in Patagonia, Argentina

Publication Type:Journal Article
Year of Publication:2010
Authors:N. S. Martino, Romero, M. Damian, Castro, Ddel Carmen
Journal:Journal of Parasitology
Date Published:2009

A detailed redescription of Gyropus parvus (Phthiraptera: Amblycera: Gyropidae) is given based on specimens collected from the type host, Ctenomys colburni Allen 1903, and the type locality, Estancia Huanuluán, Provincia de Rio Negro. We expand and provide new chaetotaxy. New scanning electron microscopy images providing microstructural details of adults and eggs of G. parvus obtained from topotype specimens are included. Sexual dimorphism was mainly shown by differences in body size and abdominal chaetotaxy, with females being 17.5 % larger than males, and with more setae in each cluster. Significant differences between males and females were also observed in sternal plate measurements. Features described here show homogeneity within type host population. This information contributes to our knowledge of intra- and interspecific variability for parasite populations. Our investigation constitutes the first collection of G. parvus at type host and locality after the holotype specimen.

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