Abstract：
Necrophagous beetles are sometimes used to estimate the minimum postmortem interval (PMImin) in the decay and remains stages of a corpse. Among these, the Dermestidae is one of the most common groups used and therefore has important research and application value. In this study, the developmental events of Dermestes maculatus de Geer, 1774, were recorded at six constant temperatures, and isomorphen diagrams were established. The thermobiological parameters were estimated using linear and non-linear models, and morphological indicators such as larval body length were measured. The results showed that the developmental duration of the whole immature stage decreased from 66.13 ± 8.58 days at 19 °C to 21.9 ± 2.01 days at 34 °C. The survival rate of the immature stages, especially the egg stage, varies greatly with temperature, with the lowest survival observed at 34 °C and the highest at 22 °C. The lower developmental threshold, the intrinsic optimum temperature, and the upper lethal developmental threshold obtained by the curvilinear Optim SSI models were 15.28 °C, 28.36 °C, and 34.03 °C, respectively. The body length, head capsule width, and pronotum width showed obvious growth patterns with larval developmental duration, which were characterized by equations and isomegalen diagrams. This study provides important basic data for the application of D. maculatus to estimate the PMImin in forensic entomology in the Yangtze River Delta region of China.
摘要：
食尸甲虫有时用于估计腐烂中的最小死后间隔（PMImin），并保留尸体的各个阶段。其中,兽科是最常用的类群之一,因此具有重要的研究和应用价值。在这项研究中,DermestesmaculatusdeGeer的发育事件，1774年，在六个恒定温度下记录，并建立了同模图。使用线性和非线性模型估计热生物参数，并测量了幼虫体长等形态学指标。结果表明，整个未成熟阶段的发育持续时间从19°C的66.13±8.58天减少到34°C的21.9±2.01天。未成熟阶段的存活率，尤其是鸡蛋阶段，随温度变化很大，在34°C时观察到最低的存活率，在22°C时观察到最高的存活率。较低的发展门槛，固有的最佳温度，通过曲线OptimSSI模型获得的致死发育上限阈值为15.28°C，28.36°C,和34.03°C，分别。身体长度，头部胶囊宽度,胸廓宽度与幼虫发育持续时间呈明显的生长模式，用方程和等值线图来表征。本研究为黄斑虫在我国长江三角洲地区法医昆虫学中的应用提供了重要的基础数据。
