Egg, larvae and the puparium of Fannia sabroskyi Seago, 1954 (Diptera, Fanniidae) are described and illustrated for the first time. The following structures have been documented: pseudocephalon, antennal complex, maxillary palpus, facial mask, anterior spiracle, cephaloskeleton structures, thoracic and abdominal processes, anal division, and posterior spiracle. Due to its necrophagous habit, this species may be of potential forensic importance for estimating the postmortem interval in criminal investigations. The information presented herein may be useful to distinguish the immature forms of Fannia species and to supplement the database for identification of Neotropical species of Fanniidae. In addition, it is also important for evolutionary and phylogenetic studies.

首次描述并举例说明了1954年Fannia sabroskyi Seago（Diptera，Fanniidae）的卵，幼虫和the 。已记录以下结构：假头颅，触角复合体，上颌骨睑，面膜，前鼻梁，头颈骨骼结构，胸廓和腹突，肛门分裂和后鼻梁。由于其嗜食性习惯，该物种对于估计犯罪调查中的死后间隔可能具有法医学重要性。本文提供的信息可能有助于区分Fannia物种的未成熟形式，并补充用于鉴定Fanniidae的新热带物种的数据库。此外，它对于进化和系统发育研究也很重要。