Department of Ecology, Faculty of Environmental Sciences, Czech University of Life Sciences Prague, Kamýcká, Praha, Suchdol, Czech Republic.
J Med Entomol. 2021 Jan 12;58(1):64-70. doi: 10.1093/jme/tjaa170.
The postmortem interval (PMI) estimation, in cases where the body was discovered in an advanced stage of decomposition, is predominantly based on entomological evidence. However, very few forensically important species are sufficiently known in detail to allow a practical application. One of them is the carrion beetle, Necrophila (Calosilpha) brunnicollis (Kraatz, 1877). Its development from egg to adulthood was studied under a range of ecologically relevant constant temperatures to find parameters of thermal summation models. Developmental sexual dimorphism and the presence of developmental rate isomorphy were investigated. Herein we present the lower developmental thresholds and sum of effective temperatures for all developmental stages of N. brunnicollis (egg, first-third larval instar, postfeeding stage, and pupae). We did not find any evidence of developmental sexual dimorphism nor was the presence of developmental rate isomorphy confirmed. Our results present the first thermal summation model of the East Asian carrion beetle that can be used for the PMI estimation.
死后间隔（PMI）估计，在尸体发现处于高度分解阶段的情况下，主要基于昆虫学证据。然而，在法医上非常重要的物种中，很少有足够详细的了解，无法实际应用。其中之一是食尸甲虫 Necrophila（Calosilpha）brunnicollis（Kraatz，1877）。为了找到热总和模型的参数，我们在一系列生态相关的恒定温度下研究了从卵到成虫的发育情况。研究了发育性别二态性和发育速率同形性的存在。在此，我们提出了 N. brunnicollis（卵、第一至第三幼虫龄期、摄食后阶段和蛹）所有发育阶段的较低发育阈值和有效温度总和。我们没有发现任何发育性别二态性的证据，也没有证实发育速率同形性的存在。我们的研究结果提供了第一个可以用于 PMI 估计的东亚食尸甲虫的热总和模型。
