The restinga tyrannulet (Phylloscartes kronei) is a species of bird in the family Tyrannidae, the tyrant flycatchers.

They assigned the specific epithet kronei in honor of Ricardo Krone, the Brazilian zoologist who collected the 1898 specimen.

The rest of their underparts are medium yellow that is brightest on the belly and has faint greenish mottling on the breast and flanks.

Both sexes have a brown iris, a black bill with a pale base to the mandible, and gray legs and feet.

[3][4][5] The restinga tyrannulet is found in southeastern Brazil along a narrow coastal band from the floodplain of the Ribeira River in southern São Paulo state south into northeastern Rio Grande do Sul.

It typically perches on a sloping branch and makes short sallies to grab prey from leaves and twigs.

Females take about 19 days to build the nest, a closed ball of moss and spider web lined with dry grass and seed fluff.

"Within its range, suitable habitat is rapidly cleared for beachfront dwellings and tourist developments, notably on Ilha Comprida, and future pressure on restingas are likely to be great.