Finding a nest : ant-associated silverfish (Zygentoma: Lepismatidae) moving outside granivorous Messor nests (Hymenoptera: Formicidae) Molero-Baltanás, R. /Degallier, Nicolas Gaju-Ricart, M. Parmentier, T. Ant nests accommodate a diverse group of strictly associated arthropods. Most of these arthropods are seldom observed outside their host nest, emphasizing significant gaps in our knowledge regarding their biology. We recorded a series of field observations of lepismatid silverfish (Zygentoma: Lepismatidae) moving outside their usual <jats:italic>Messor</jats:italic> nest habitat in southern Spain and France. We illustrate how they move between different nests and locate nests by closely tracking the foraging trails of their hosts. Additionally, we confirm a prior observation that they can follow their host ants when they migrate to a new nest site. Our observations offer new insights into the hidden biology and the intricate interactions of specialized arthropod symbionts with their hosts within a spatial context. 2024 text https://www.documentation.ird.fr/hor/fdi:010092315 fdi:010092315 Molero-Baltanás R., Degallier Nicolas, Gaju-Ricart M., Parmentier T.. Finding a nest : ant-associated silverfish (Zygentoma: Lepismatidae) moving outside granivorous Messor nests (Hymenoptera: Formicidae). 2024, 27 (4), e12592 [7 ] EN ESPAGNE FRANCE