Estimation of post-mortem interval for a drowning case by using flies (Diptera) in Central-South China: Implications for forensic entomology

2013 ◽  
Vol 21 (4) ◽  
pp. 293-298 ◽  
Author(s):  
L. Ying ◽  
C. Yaoqing ◽  
G. Yadong ◽  
Z. Lagabaiyila ◽  
L. Longjiang
2020 ◽  
Vol 116 (5/6) ◽  
Author(s):  
Danisile Tembe ◽  
Samson Mukaratirwa

The use of forensic entomology is well established in the northern hemisphere, but is still emerging in the southern hemisphere, where most of the current research is not explicitly undertaken in the context of forensics. In this review, we provide an update on the current status of forensic entomology research and its application in relation to estimation of post-mortem interval in various criminal investigations ranging from murder cases, cases of human neglect and the poaching of wildlife in southern Africa, among other issues. A literature search was conducted using Google Scholar, PubMed, Scopus and EBSCOhost databases. The studies reviewed were focused on arthropod diversity during different stages of carcass decomposition, effect of seasons on the abundance and diversity of carrion feeding arthropod species during carcass decomposition, and diurnal and nocturnal oviposition of forensically important insect species during carcass decomposition. It was further observed that arthropod species that established on a decomposing carcass are potentially useful in the estimation of post-mortem interval and determining clues in cases of criminal investigations. The review confirmed the paucity of research in forensic entomology, and its application in southern Africa. Future studies on the research and application of forensic entomology in various criminal investigation scenarios – such as murder cases, human neglect, and wildlife poaching in southern Africa – are therefore needed. Significance: • Forensic entomology research and its application is lagging in southern Africa. • There is seasonal variation in the arthropod species used for estimation of post-mortem intervals in southern Africa. • Identification of arthropod species diversity in the region has potential for application in forensic investigations.


Insects ◽  
2021 ◽  
Vol 12 (4) ◽  
pp. 314
Author(s):  
Szymon Matuszewski

During death investigations insects are used mostly to estimate the post-mortem interval (PMI). These estimates are only as good as they are close to the true PMI. Therefore, the major challenge for forensic entomology is to reduce the estimation inaccuracy. Here, I review literature in this field to identify research areas that may contribute to the increase in the accuracy of PMI estimation. I conclude that research on the development and succession of carrion insects, thermogenesis in aggregations of their larvae and error rates of the PMI estimation protocols should be prioritized. Challenges of educational and promotional nature are discussed as well, particularly in relation to the collection of insect evidence.


Insects ◽  
2021 ◽  
Vol 12 (4) ◽  
pp. 294
Author(s):  
Senta Niederegger ◽  
Gita Mall

Skeletonization is often perceived as an indicator of long post-mortem intervals. The finding of feeding larvae of first colonizers, on the other hand, indicates days. We present a case in which both findings were present. Larvae of Phormia regina, aged 9 days, and skeletonization of the head and part of the thorax were both found on an unidentified female body. Identification of dentures eventually led to resolution of the case and a confession, which settled the seeming contradiction in favor of forensic entomology.


2012 ◽  
Vol 220 (1-3) ◽  
pp. 251-264 ◽  
Author(s):  
Cameron S. Richards ◽  
Thomas J. Simonsen ◽  
Richard L. Abel ◽  
Martin J.R. Hall ◽  
Daniel A. Schwyn ◽  
...  

2007 ◽  
Vol 50 (2) ◽  
pp. 279-288 ◽  
Author(s):  
Leonardo Gomes ◽  
Marcos Rogério Sanches ◽  
Claudio José Von Zuben

The aims of this work was to study the life stages of Chrysomya megacephala in a circular arena allowing the combined radial post-feeding dispersal from the center of the arena of C. albiceps and C. megacephala larvae. To determine the location of each pupa, the distance from the center, the depth and weight of each pupa formed were analyzed. For the larvae of C. albiceps, females released buried deeper than males, reaching an average depth of 10.74 cm and C. megacephala larvae presented greater average results than C. albiceps for all variables, particularly distance, which was 16.02 cm for this species and 12.30 cm for C. albiceps. C. albiceps larvae preyed on 30 C. megacephala larvae in both experiments. These results could be used in forensic entomology because the evaluation of Post Mortem Interval (PMI) was one of the most important aspects of legal medicine, and it could be underestimated if the older dispersing larvae or those that dispersed longer and faster or deeper, were not taken into account.


2012 ◽  
Vol 21 (4) ◽  
pp. 412-414 ◽  
Author(s):  
Hera Luana Luiz ◽  
Tiago Ledesma Taira ◽  
Wilson Werner Koller

Synanthropic flies outstanding beside other flies due their relative abundance close to domestic animals and human population, to which they are able to cause myiasis or transmit pathogenic agents. As they're necrophagous they act as corpse decomposers and are useful in the forensic entomology in the post mortem interval determination. This study aimed to know flies diversity and abundance in Campo Grande, State of Mato Grosso do Sul. Captures were made weekly, utilizing three traps baited with decaying fish meat, from June of 2008 to May of 2009 in a remainder ciliary forest of the Embrapa's Cattle Beef Experimental Farm. The dipterans families that were considered and respectively number of collected specimens were: Calliphoridae (105,334); Muscidae (27,999); Sarcophagidae (21,083); Fanniidae (17,759) and Mesembrinellidae (305), totalizing 172,480 dipterous. To the local known species some Muscidae were increased as follows: Neomuscina atincticosta, Pseudoptilolepis elbida, Polietina orbitalis, Polietina flavithorax, Scutellomusca scutellaris, Graphomya analis and Morellia couriae.


2007 ◽  
Vol 07 (2) ◽  
pp. 1-5 ◽  
Author(s):  
Napaporn Sritavanich ◽  
Dr. Tasanee Jamjanya ◽  
Dr. Yupa Hanboonsong ◽  
Amporn Jamsuwan

2015 ◽  
Vol 24 (2) ◽  
pp. 70-8
Author(s):  
Sunny Wangko ◽  
Erwin G. Kristanto ◽  
Sonny J.R. Kalangi ◽  
Johannes Huijbregts ◽  
Dantje T. Sembel

Background: Forensic entomology has not been acknowledged in Indonesia so far. Indonesian carrion insects are very rarely reported. The aim of this study was to obtain the types of insects on pig carcasses that could be used for the estimation of post-mortem interval.Methods: Four domestic pigs sacrificed with different methods were used as a model. The carcasses were observed twice daily (around 9 a.m and 4 p.m) during 15 days to assess the stages of decomposition and to collect insects, both in mature and immature stages. The immature insects were reared and the mature insects were indentified in the Laboratory of Pests and Plant Diseases, University of Sam Ratulangi, Manado. Chrysomya megacephala and C. rufifacies were identified both morphologically and with deoxyribose-nucleic acid (DNA) techniques.Results: Five stages of decomposition (fresh, bloated, active decay, post-decay, and skeletonization) were observed. A total of 11 Diptera and 8 Coleoptera species were found during a 15-days succession study. Chrysomya megacephala, C. rufifacies and Hermetia illucens colonized in all carcasses.Conclusion: Insects found on four different pig carcasses consisted mainly of widespread Diptera and Coleoptera. Chrysomya megacephala, C. rufifacies and Hermetia illucens seemed to be primary candidates for the estimation of the post-mortem interval.


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