The Caatinga Laucha is a vesper mouse from central and northeastern Brazil. It occurs in open grasslands and forest edges in the Cerrado and Caatinga, as well as cultivated fields, and lives on the ground and eats seeds.
The tail averages about 74% of head-body length. The back is yellowish to olive-brown with fine black hairs; the underside is pale and the chin white.
It lives on the ground and mainly eats seeds, occurring in open vegetation, forest edges, and cultivated fields. In one central-Brazilian survey, females collected in August and November were not pregnant.
The upper surfaces of the forefeet and hindfeet are covered with short white hair.
There is a ring around the eye, and the tail is slightly darker above.
An extinction-risk assessment has not been added yet.