The objective of this study was to carry out a taxonomic review of fossil American phlebotomine sand ßies and describe two new species found in amber in the Dominican Republic. The gonostyle of one of these, Micropygomyia dorafeliciangeliae nov. sp., ( Lutzomyia dorafeliciangeliae, species group oswaldoi), has Þve spines, similar to that of Micropygomyia paterna (Quate, 1963) ( Lutzomyia paterna, species group oswaldoi), but they may be distinguished by the alpha/gamma ratio, which is 1.0 in the new species and 1 in the latter. Pintomyia dominicana nov. sp. ( Lutzomyia dominicana, species group verrucarum) has four spines on the gonostyle and presents a long bristle on the apex of the paramere, which distinguishes it from the other fossil species. With the description of these two new species, a total of 14 species of the American fossil phlebotomine sand ßies has been described, 10 of which belong to the genus Pintomyia. An identiÞcation key for male fossil species is presented.