Abstract
A new species of Haemogamasus mites is described from Chubut, Neuquén and Río Negro Provinces, Argentina. It was collected primarily from rodents of the genus Abrothrix (65 of 77 collections): Abrothrix longipilis (63), Abrothrix olivaceus olivaceus (1) and Abrothrix olivaceus xanthorhinus (1). Additional collections were made from Geoxus valdivianus (5) and Loxdomtomys micropus (5). Possibly incidental or contaminate collections were recorded from Oligoryzomys longicaudatus (1) and Dromiciops gliroides (1). Most collections came from Río Negro Province (36), with 22 from Neuquén and 19 from Chubut. An identification key is provided to distinguish ♀s of this new species from ♀s of species from the western hemisphere, based on morphological characters.
Highlights
Mites were collected by the junior author (RDS) during natural history studies of small mammals conducted in the Chubut, Neuquén and Río Negro Provinces, Argentina
Additional collections were made from Geoxus valdivianus (5) and Loxdomtomys micropus (5)
Incidental collections were made from Oligoryzomys longicaudatus (1) and Dromiciops gliroides (1)
Summary
Mites were collected by the junior author (RDS) during natural history studies of small mammals conducted in the Chubut, Neuquén and Río Negro Provinces, Argentina. Among those collected was a new species belonging to the genus Haemogamasus Berlese, 1889. Additional collections were made from Geoxus valdivianus (5) and Loxdomtomys micropus (5). Incidental collections were made from Oligoryzomys longicaudatus (1) and Dromiciops gliroides (1). The most specimens were taken from Río Negro Province (36), with 22 from Neuquén and 19 from Chubut. Mammal synonymies follow those of Wilson and Reeder (2005)
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