Universidad Nacional de Salta (UNSa), Facultad de ciencias Naturales, Instituto para el Estudio de la Biodiversidad de Invertebrados (IEBI), Avenida Bolivia, Salta, Argentina.
Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), CCT-Salta, Argentina.
J Med Entomol. 2021 May 15;58(3):1064-1073. doi: 10.1093/jme/tjab001.
Obtaining the specific development time of each species of forensic interest is crucial for the estimation of an accurate and reliable Minimum Postmortem Interval (PMImin). In Argentina, Lucilia ochricornis (Wiedemann) and Lucilia purpurascens (Walker) (Diptera: Calliphoridae) were masked under the name Lucilia cluvia (Walker) for a long time still in forensic expertise. For this reason, the objective of this work is to deepen the study of the development time of these species and utilize this relevant information in the generation of different associated methods that can be used in forensics to estimate the PMI. Immature stages of L. ochricornis and L. purpurascens were reared in a brood chamber according to the following temperature treatments: 13.4, 15.1, 22.3, and 23.6°C. The development time of each stage/state of these flies was recorded as well as the resulting accumulated degree-hours (ADH), to build isomorphen diagrams and thermal summation models for each species. The development time and ADH were different between both species and their development stages. On the other hand, the methods provided for estimating PMImin provide the forensic entomologist more tools to reach accurate and reliable estimates.
确定每种法医学感兴趣的物种的具体发育期对于准确可靠的死后间隔时间(PMImin)估计至关重要。在阿根廷,很长一段时间里,法医领域一直将丽蝇属的嗜人瘤丽蝇(Wiedemann)和淡绿彩丽蝇(Walker)(双翅目:丽蝇科)误称为淡绿彩丽蝇(Walker)。因此,这项工作的目的是深入研究这两个物种的发育期,并利用这些相关信息生成不同的关联方法,这些方法可用于法医领域来估计 PMI。将 L. ochricornis 和 L. purpurascens 的幼虫在育雏室中按照以下温度处理进行饲养:13.4、15.1、22.3 和 23.6°C。记录这些蝇类各阶段/状态的发育期以及由此产生的累积度日(ADH),为每个物种构建同形图和热总和模型。这两个物种及其发育阶段的发育期和 ADH 不同。另一方面,为估计 PMImin 提供的方法为法医昆虫学家提供了更多的工具来实现准确可靠的估计。