Museu Paraense Emílio Goeldi - Opiliones Collection

Are harmless arachnids cryptic and nocturnal habits of most species. Usually live under logs, stones, leaves and litter, buried or in bromeliads on leaves and stems or roots of living plants, and may also inhabit caves. Are highly diverse and abundant in tropical regions of the world, with 6,476 species (Kury, 2011). Are very sensitive animals that have a high degree of endemism and limited dispersal ability, thus being a group with high potential for extinction. The Neotropics has the largest percentage of the world's wealth of harvestmen (57%) of which 41% are in Brazil (938 species).