Errors and omissions found in "A synonymic catalog of the Neotropical Crabronidae and Sphecidae" (Amarante, 2002) are corrected. Substitute names for junior homonyms are proposed, Cerceris cisplatina new name for Cerceris dichroa Brethes, 1909 non Dalla Torre, 1890, and Mimesa modesta mallochi new name for Mimesa modesta reticulata (Malloch, 1933) non Cameron, 1902. Statitics for the taxa are updated.
Sphecidae; Crabronidae; Neotropical; catalog; new name; nomenclature; taxonomy
