Ataenius lobatus Horn, 1871

Distribution. Previous state record: Baja California Sur. It has also been recorded in the United States of America. New state records: Baja California and Sonora.

Material examined. México: Baja California, El Rosario de Arriba, 585 m, 22–26-VIII-2002, G. Nogueira, 22 specimens (IEXA) . México: Sonora, El Cimarrón, 245 m, 2-VIII-2009, G. Nogueira, 98 specimens (IEXA) .