Souza, Carina MaraDa Costa-Silva, ViniciusPrado, Aline MarraraSavino, Andre GardelinoThyssen, Patricia Jacqueline2026-03-312026-03-312026-03Souza, C.M., da Costa-Silva, V., Prado, A.M. et al. Postmortem Interval Estimation Based on the Developmental Patterns of Hemilucilia segmentaria (Fabricius) (Diptera, Calliphoridae) and Peckia (Euboettcheria) anguilla (Curran & Walley) (Diptera, Sarcophagidae): a Case in Southeastern Brazil. Neotropical Entomology 55, 24: 1-8 (2026). https://doi.org/10.1007/s13744-026-01368-9.1519-566X (print)1678-8052 (online)10.1007/s13744-026-01368-9http://hdl.handle.net/2263/109371DATA AVAILABILITY : The datasets generated and analyzed during the current study are available from the corresponding author on reasonable request.Decaying corpses constitute a relevant source of food resources for a wide range of insects classified as necrophagous. Several blowflies (Diptera: Calliphoridae) and flesh flies (Diptera: Sarcophagidae) species are necrophagous and, for this reason, comprise two of the most relevant families of insects in forensics. Obtaining reliable postmortem interval (PMI) estimates based on entomological traces is of great importance in investigative processes. We present a case report of PMI estimation based on entomological evidence collected in a young woman's corpse found in a wild area from southeastern Brazil, using two Diptera species: Hemilucilia segmentaria (Fabricius) (Calliphoridae) and Peckia (Euboettcheria) anguilla (Curran & Walley) (Sarcophagidae). Additionally, we report for the first time P. (E.) anguilla rearing in a decaying corpse.en© 2026. The Author(s). Open Access. This article is licensed under a Creative Commons Attribution 4.0 International License.BionomicsPeriod of insect activityNecrophagous speciesForensic entomologyArticle