The Pacific Antwren is a small bird with different male and female plumage. It occurs on the Pacific side of Central America and north-western South America, using vine-rich forest.
It is about 9 cm long. Males have black-and-white stripes above and below; females have a rufous head and throat with an unstriped ochre underside.
It forages in vine-rich lowland and secondary forest, gleaning small invertebrates from branches and leaves in the lower to middle levels.
An extinction-risk assessment has not been added yet.