Results of collecting made with fluorescent light traps and by hand between April 2009 and July 2010 in two sites of Santa Cruz Xoxocotlán, Oaxaca are presented. These sites are located at 1550 m of altitude. Thirteen species were collected: Phyllophaga lenis (Horn), P. macrocera (Bates), P. nubipennis (Bates), P. parvisetis (Bates), P. cinnamomea (Blanchard), P. ravida (Blanchard), P. misteca (Bates), P. vetula (Horn), P. obsoleta (Blanchard), P. scabripyga (Bates), P. chiapensis (Chapin), P. porodera (Bates) and P. integriceps (Moser). The species group that showed a higher species richness was "anodentata". The most abundant species was P. lenis with 3107 of the 3251 specimens collected during the two years. A key for males of the 13 species is provided. Also, pictures of diagnostic structures of each species are included.
