Diversity of beetles collected with flight interception traps at Parque Estatal Bosque de Arce, Talpa de Allende, Jalisco, Mexico was studied. Sampling was done during dry and wet seasons. In total, 3,857 individuals of 29 families, 214 morphospecies, and 73 genera were collected. Two sites, one with great diversity in the spring and the other with greatest diversity in winter, were sampled. Most abundance and species richness at both sites were in summer. Complementarity values near 1 and low similarity of the beetle assemblage between seasons and sites, described different composition between sites and increased diversity at the landscape level in the forest. Four beetle species and two new genera records were recorded for the State of Jalisco.