Notes on the Marsh Beetle Genus Ora Clark (Coleoptera: Scirtidae) in the Southeastern USA and Central America

New distribution records for the genus Ora Clark, 1865 in the USA and Mesoamerica are given, with notes on variations in markings in Ora discoidea Champion, 1897. New country records are provided for Ora depressa (Fabricius, 1801) (Mexico) and O. discoidea (USA). A key is provided for identification of the Ora species known from the USA.