Publications by authors named "Chengtao Kang"

In forensic entomology, the time-related growth and development of carrion insects allows for the estimation of the minimum postmortem interval (PMI). Piophila megastigmata (Diptera: Piophilidae) is of great significance in estimating PMI in the late stage of corpse decay. In this paper, the development of P.

View Article and Find Full Text PDF
Article Synopsis
  • The study focuses on using larval body length of necrophagous flies to estimate their age, which is important in forensic science to determine the minimum postmortem interval (PMI).
  • A new logistic algorithm was created to model the relationship between larval body length and developmental time across eight fly species, resulting in a more accurate method for age estimation.
  • The model shows an overall accuracy of 82.7% for growth curves, with age extrapolation accuracy ranging from 76.8% to 92.9%, making it a valuable tool for forensic entomologists.
View Article and Find Full Text PDF

Forensic entomology case reports are the product of rapid development in the field, the widespread acceptance of the science and the application of forensic entomological knowledge. In this study, we retrospectively summarized information derived from 307 forensic entomology case reports from 1935 to 2022 from a global perspective. Our checklist of relevant information included insect species, specific indoor or outdoor preferences, preferred temperatures, and stages of body decomposition.

View Article and Find Full Text PDF

Megaselia scalaris (Schmitz, 1938) (Diptera: Phoridae) is a common insect in forensic science that is frequently found in indoor cases, particularly on corpses in closed environments. Although this species is useful for estimating the minimum postmortem interval (PMI) in the absence of Calliphoridae, there is a lack of data on its development in China. Herein, we studied the development of M.

View Article and Find Full Text PDF

Coleoptera, including the family Nitidulidae, are valuable for estimating long-term postmortem intervals in the late stage of body decomposition. This study showed that, under seven constant temperatures of 16, 19, 22, 25, 28, 31, and 34 °C, the developmental durations of (Linnaeus, 1767) from oviposition to eclosion were 71.0 ± 4.

View Article and Find Full Text PDF

Hydrotaea spinigera (Stein, 1910) (Diptera: Muscidae) is a forensically important sarcosaprophagous species widely distributed throughout the Oriental and Australasian regions. At the advanced decomposition stage or the skeletonize stage, the immature stages of H. spinigera, especially the pupae, can still be found in large quantities and could be used as important indicators to estimate the minimum postmortem interval (PMI).

View Article and Find Full Text PDF

The study of insect fauna and their development and succession patterns on decaying cadavers is crucial to promoting insect evidence as a useful tool in forensic science, particularly for estimating the postmortem interval (PMI). Body decomposition and arthropod succession are affected by many factors and exhibit substantial regional variations; therefore, detailed succession studies in different biogeographic regions are required for understanding the successional patterns of insects in various environments. This study was conducted in the summer of 2021 using three domestic pig carcasses (Sus scrofa domestica L.

View Article and Find Full Text PDF

The Yangtze River Delta is one of the most economically developed regions in China, and many cases in the area require an estimation of the postmortem interval each year. This article reports forensic entomological research conducted in this region in different months. A total of 18 domestic pigs were used to study carcass decomposition, species composition, development events, and succession patterns of insects in different months from 2015 to 2021.

View Article and Find Full Text PDF

(McAlpine, 1978) (Diptera: Piophilidae) is a forensically important species, but it was not found in China until recently. In this study, the first complete mitogenome of was sequenced using the next-generation sequencing, which was also the first mitogenome of Piophilidae. Our mitochondrial assembly has a length of 15,410 bp, which consists of 22 tRNA genes, 13 protein-coding genes (PCGs), two rRNA genes, and a non-coding control region.

View Article and Find Full Text PDF

(Fabricius, 1775) (Coleoptera: Cleridae) is an important cosmopolitan storage pest, and also frequently appears on highly decomposed and skeletonized corpses. It is a forensically important species expected to indicate a longer postmortem interval (PMI). Therefore, we investigated the development of at five constant temperatures between 22 °C and 34 °C.

View Article and Find Full Text PDF

In this paper, we report the estimation of the minimum PMIs of two human corpses and two dog carcasses using entomological evidence. Corpses of an elderly couple and carcasses of four dogs were found scattered on different floors in a house. The scene was very dirty.

View Article and Find Full Text PDF