Micoureus paraguayanus (Tate, 1931)Micoureus travassosi (Miranda-Ribeiro, 1936) Tate's woolly mouse opossum (Marmosa paraguayana)[2] is an omnivorous, arboreal South American marsupial of the family Didelphidae,[3] named by American zoologist George Henry Hamilton Tate.

[4] It is native to Atlantic coastal forests of Brazil, Paraguay and Argentina.

[1] Insects are a major component of its diet.

[1] It was formerly assigned to the genus Micoureus, which was made a subgenus of Marmosa in 2009.

[2] While its conservation status is "least concern", its habitat is shrinking through urbanization and conversion to agriculture over much of its range.