IntroduccIónLa aplicación fundamental de la entomología forense es estimar el tiempo trascurrido desde la muerte de una persona hasta el descubrimiento del cadáver, lo que se denomina Intervalo Post Mortem (PMI, siglas en inglés). Generalmente hay dos métodos utilizados en entomología forense para estimar el PMI: el ciclo de vida de las especies colonizadoras primarias y los patrones Rev. Mus. Argentino Cienc. Nat., n.s. 19(2): 225-234, 2017 ISSN 1514-5158 (impresa) ISSN 1853 Asociación y estratificación de la entomofauna cadavérica a diferentes profundidades en el suelo como indicadores complementarios en largos intervalos post mortem Abstract: Association and stratification of cadaveric entomofauna at different depths in the ground as complementary indicators in long post-mortem intervals. In this study the composition of carrion entomofauna in the ground below the carcass one month after the death was e�amined, identifying strata and associas one month after the death was e�amined, identifying strata and associaone month after the death was e�amined, identifying strata and associations to different ground depths. three carcasses were e�amined: two horses and a cow, placed in sandy soil during the spring, summer and autumn in a natural environment in Mendoza. Soil samples were taken from ground surface every 10 cm below the corpse up to a depth of 60 cm. A total of 11,452 specimens (8,576 in autumn, 2,339 in summer, and 537 in spring), belonging to 24 different species belonging to 11 families was collected. Indicator species allowed differentiation of strata in sampled soil under corpses. In spring a first stratum was defined with pupae of Piophila casei (Linnaeus) (Piophilidae) between the surface and 30cm depth and a second stratum was defined at a depth between 40 to 60cm with pupae of a species of Phoridae and eggs of Histeridae. In summer only one stratum was defined by the abundance of puparia of Chrysomya albiceps (Wiedemann) (calliphoridae), located between the surface and 30cm depth. In autumn only one stratum was determined by larvae of Dermestes maculatus de Geer (dermestidae) located between the surface and 20cm depth. the entomological composition varies with depth and between seasons, abundance was higher on the surface. calliphoridae and dermestidae were associated with superficial layers and the genera Euspilotus Lewis (Histeridae) and Omorgus Erichson (trogidae) to deeper layers of the soil.Key words: cadaveric entomofauna, association, stratification, soil, long PMI Resumen: En el presente trabajo se e�aminó la composición de entomofauna cadavérica en el suelo debajo de cadáveres identificando estratos y asociaciones con diferentes profundidades a un mes de producido el deceso. Se utilizaron tres cadáveres (dos caballos y una vaca) dispuestos en suelo arenoso en primavera, verano y otoño en un ambiente natural de Mendoza. Los muestreos se realizaron en el suelo debajo de los cadáveres hasta 60 cm de profundidad. Se colectaron 11452 ejemplares (8576 en otoño, 2339 en verano y 537 en prima...