The diversity of microarthropods (mites and springtails) in corticolous moss was compared in the floodable lowland Nicolás Bravo, Quintana Roo, included six sampling, carried out in dry, rainy and north season of 2011. 28 families of microarthropods from corticolous moss were recorded, among which the Galumnidae (52.36%), Isotomidae (10.45 %) and Scheloribatidae (9.68%) families were the most abundant, making up 72%, further that showed their maximum abundance at rainy season. There was temporal variation in the density of microarthropods (F (2, 27) = 10.62, p<0.05); the highest density was found at rainy season. The highest diversity was recorded between dry and north season.