formicariinæ

from The Century Dictionary.

• noun A subfamily of Formicariidæ, the ant-thrushes proper, resembling in form but not in coloration the old-world pittas (with which they were formerly confounded). They have a thrush-like bill, large stout feet, a very short square tail, sexes usually alike in color, and terrestrial habits. These ant-birds are confined to the warmer parts of America; the genera and species are numerous.