Genus Palæontina, Butler (fossil). Frontwing ovate triangular; costal nervure much swollen at base; subcostal four-branched, the first two branches emitted about half-way between discoidal cell and apex; the third emitted abnormally just beyond the cell, and therefore springing from beneath the nervure; the fourth emitted in a still more unusual manner from the third; so that the third and fourth branches might be described as springing together from a footstalk emitted from beneath the subcostal; discocellular and discoidal nervures precisely as in Caligo; median branches nearer together than in Caligo; submedian nervure following the same direction as the median nervures, but even more distinctly inarched, so that the internal area is considerably widened: hindwing and body wanting. Type Palæontina oolitica.