Mus griseo-flavusPhyllotis griseo-flavus The gray leaf-eared mouse (Graomys griseoflavus) is a rodent species from South America.

It is found in Argentina, Bolivia, Brazil and Paraguay; its habitat includes the Gran Chaco.

[1] This is a variable and widely distributed species that can be found in many habitat types.

It is considered to be a species complex, and some populations might be considered separate species.

[3] [4] Genus Graomys contains species once considered to be part of the complex.