Teretristeæ.
Above olive-gray; beneath whitish posteriorly, and yellow anteriorly … Teretristis.
SETOPHAGINÆ.
7. Bill tyrannine. Tail broad, equal to or longer than the wing, and much rounded.
Setophageæ. Colors mainly black, red, and white.
Tail not longer than the wing. Above black, wing variegated … Setophaga.
Tail longer than the wing. Above plumbeous, wing unvariegated … Myioborus.
8. Bill sylvicoline. Tail narrow, almost even; shorter than the wing.
Myiodiocteæ. Colors yellow beneath, olive-green or ashy above.
Black markings about the head in the ♂ … Myiodioctes.