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<p>Forensic <!--Query ID="Q1" Text="Please check if affiliations and article title capturedpresented are correct." Resolved="yes"-->entomology focused on sarcosaprophagous insects and arthropods may provide a sound tool for assessment of Post Mortem Interval (PMI) and could provide scientific evidence for date of deaths. However, few data on necrophagous insect are available in many western African countries particulary in Burkina Faso. The current study focused on <i>Necrobia rufipes</i>, an insect known to be appear on highly decomposed and skeletonized corpses of mammals. The study was<!--Query ID="Q2" Text="Please confirm if the author names are presented accurately and in the correct sequence (given name, middle nameinitial, family name)." Resolved="yes"--> carried out at the Central Laboratory of Agricultural Entomology of Kamboinsé (LCEAK), within the Institute for Environment and Agricultural Research (INERA), from April 2021 to April 2023 in Burkina Faso. These two substrates were chosen due to the phylogenetic proximity of their genomes to the human genome, as well as the ease of access to these animals. This study aimed at examining some biological parameters of <i>N. rufipes</i> on pig and rabbit used as substrate under ambient conditions. Knowledge of this information can help estimate the time at which a murder was committed in humans. As results, eggs took an average of 72&#xa0;h to hatch regardless substrate. The duration of larval stages was shorter on pigs than those found in rabbits and ranged from 2 to 11 days on average. Statistical analyses performed showed that substrates had a highly significant effect (<i>P</i> &lt; 0.0001) on the life span of both adult’s female and male as well as on female oviposition. The life span of males fed on pig was significantly higher than those fed on rabbit, with values of 74.82 ± 10.34 and 27.55 ± 4.71 days respectively, while for females, the lifespan was 90.36 ± 10.77 and 36.67 ± 4.92 days on pigs and rabbits respectively. Moreover, <i>N. rufipes</i> laid more eggs on pigs (285.75 ± 56.94) than on rabbits (5.50 ± 1.14 eggs). Pigs remained the most preferred food substrate compared to rabbits and confirmed that they were a good model for forensic investigations. The Knowledge of these parameters could help to get skills for assessing the Post Mortem Interval.</p>

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Life history traits of Necrobia rufipes (De Geer, 1775) (Coleoptera: Cleridae) on pig and rabbit substrates in the Northern Sudanian zone of Burkina Faso

  • 期刊论文

  • 发表日期：

    2025年10月30日

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  • David Zongo,
  • Samuel Fogné Drabo,
  • Théodore Yinbyada Ouedraogo,
  • Rahim Romba,
  • Prisca Pare,
  • Antoine Waongo,
  • Fousséni Traore,
  • Olivier Gnankine

摘要

Forensic entomology focused on sarcosaprophagous insects and arthropods may provide a sound tool for assessment of Post Mortem Interval (PMI) and could provide scientific evidence for date of deaths. However, few data on necrophagous insect are available in many western African countries particulary in Burkina Faso. The current study focused on Necrobia rufipes, an insect known to be appear on highly decomposed and skeletonized corpses of mammals. The study was carried out at the Central Laboratory of Agricultural Entomology of Kamboinsé (LCEAK), within the Institute for Environment and Agricultural Research (INERA), from April 2021 to April 2023 in Burkina Faso. These two substrates were chosen due to the phylogenetic proximity of their genomes to the human genome, as well as the ease of access to these animals. This study aimed at examining some biological parameters of N. rufipes on pig and rabbit used as substrate under ambient conditions. Knowledge of this information can help estimate the time at which a murder was committed in humans. As results, eggs took an average of 72 h to hatch regardless substrate. The duration of larval stages was shorter on pigs than those found in rabbits and ranged from 2 to 11 days on average. Statistical analyses performed showed that substrates had a highly significant effect (P < 0.0001) on the life span of both adult’s female and male as well as on female oviposition. The life span of males fed on pig was significantly higher than those fed on rabbit, with values of 74.82 ± 10.34 and 27.55 ± 4.71 days respectively, while for females, the lifespan was 90.36 ± 10.77 and 36.67 ± 4.92 days on pigs and rabbits respectively. Moreover, N. rufipes laid more eggs on pigs (285.75 ± 56.94) than on rabbits (5.50 ± 1.14 eggs). Pigs remained the most preferred food substrate compared to rabbits and confirmed that they were a good model for forensic investigations. The Knowledge of these parameters could help to get skills for assessing the Post Mortem Interval.