Two new species of the genus Euxesta Loew are described and illustrated: E pacifica from California and E. atlantica from Florida, in the Quaternaria subgroup of the Notata group. A key is presented to the two new species, as well as E. calligyna (Bigot 1857), E. quaternaria Loew (1868), E. luteocesta Foote (1960), and E. nigricans Wulp (1993) of the quaternaria subgroup.
