Temperature‐dependent Development of Parasarcophaga similis (Meade 1876) and its Significance in Estimating Postmortem Interval |
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| Authors: | Lijun Yang MS Yu Wang MS Liangliang Li MS Jiangfeng Wang PhD Min Wang PhD Yingna Zhang MS Jun Chu MS Kun Liu MS Yiding Hou MS Luyang Tao MD |
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| Institution: | 1. Department of Forensic Medicine, Soochow University, Suzhou, China;2. Judicial Appraisal Centre, Shandong University of Political Science and Law, Jinan, China;3. Department of Entomology, College of Agriculture, South China Agricultural University, Guangzhou, China;4. Criminal Police Branch, Suzhou Public Security Bureau, Suzhou, China |
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| Abstract: | Flesh flies are commonly found insects on decaying corpses that appears slightly later than blowflies, and their development patterns are significant indicators for minimum postmortem interval (PMImin) estimation. In this study, the flesh fly Parasarcophaga similis (Meade 1876) was reared at nine constant temperatures ranging from 15°C to 35°C to examine indicators for estimating their age. We generated three development models, including isomorphen diagram, isomegalen diagram, and thermal summation model. Larval body length at different rearing temperatures was fit into an L = a + bT + cT2 + dT3 equation with which the relationship between the larval body length (L) and the time after larviposition (T) was confirmed. The pupal stage was categorized into 13 substages according to intrapuparial morphological changes, and a detailed table was generated of the pupal developmental stages at five rearing temperatures, 15°C, 20°C, 25°C, 30°C, and 35°C. This study provides fundamental data in supporting P. similis as an indicator for PMImin estimation. |
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| Keywords: | forensic science forensic entomology
Parasarcophaga similis
development isomorphen/isomegalen diagram thermal summation model intrapuparial development |
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