scholarly journals Behavior of the combined radial post-feeding larval dispersal of the blowflies Chrysomya megacephala and Chrysomya albiceps (Diptera, Calliphoridae) and implications for forensic entomology

2007 ◽  
Vol 50 (2) ◽  
pp. 279-288 ◽  
Author(s):  
Leonardo Gomes ◽  
Marcos Rogério Sanches ◽  
Claudio José Von Zuben
Keyword(s):  
Larval Dispersal ◽  
Forensic Entomology ◽  
Legal Medicine ◽  
Life Stages ◽  
Average Depth ◽  
Post Mortem ◽  
Chrysomya Megacephala ◽  
Chrysomya Albiceps ◽  
Post Mortem Interval ◽  
Post Feeding

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.

scholarly journals Insects on pig carcasses as a model for predictor of death interval in forensic medicine

2015 ◽  
Vol 24 (2) ◽  
pp. 70-8
Author(s):  
Sunny Wangko ◽  
Erwin G. Kristanto ◽  
Sonny J.R. Kalangi ◽  
Johannes Huijbregts ◽  
Dantje T. Sembel
Keyword(s):  
Nucleic Acid ◽  
Forensic Medicine ◽  
Forensic Entomology ◽  
Plant Diseases ◽  
Immature Stages ◽  
Post Mortem ◽  
Hermetia Illucens ◽  
Chrysomya Megacephala ◽  
Post Mortem Interval ◽  
Pig Carcasses

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.

scholarly journals Forensic entomology research and application in southern Africa: A scoping review

2020 ◽  
Vol 116 (5/6) ◽  
Author(s):  
Danisile Tembe ◽  
Samson Mukaratirwa
Keyword(s):  
Southern Africa ◽  
Forensic Entomology ◽  
Criminal Investigation ◽  
Current Status ◽  
Post Mortem ◽  
Future Studies ◽  
Post Mortem Interval ◽  
Criminal Investigations ◽  
Arthropod Species ◽  
Abundance And Diversity

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.

scholarly journals Post-mortem Interval Estimation in a Forensic Case with Two Predatory Species: Chrysomya albiceps and Synthesiomyia nudiseta

2021 ◽  
Vol 6 (1(Special)) ◽  
pp. 148
Author(s):  
Tania Ivorra ◽  
Anabel Martínez-Sánchez ◽  
Salvador Giner Alberola
Keyword(s):  
Interval Estimation ◽  
Post Mortem ◽  
Degree Days ◽  
Se Spain ◽  
Predatory Behaviour ◽  
Chrysomya Albiceps ◽  
Post Mortem Interval ◽  
Forensic Case ◽  
The Town ◽  
Accumulated Degree Days

A forensic case in which two facultative predatory species were found together on a human corpse is presented in this work. Second and third instar larvae of Synthesiomyia nudiseta (van der Wulp, 1883) (Diptera: Muscidae) and Chrysomya albiceps (Wiedemann, 1819) (Diptera: Calliphoridae) were collected from the dead body of a man on 14th November 2019, but puparia in the autopsy pictures were observed after, but not collected. The corpse was found on the terrace of the third floor of a building located in the town of Elche (SE Spain), and the pathologist confirmed the death as natural. The minimum post-mortem interval was estimated by the time to reach the length of the collected larvae or to reach the pupal developmental stage (in days and accumulated degree-days). In accordance with the influence of the predatory behaviour of each of these species on the developmental data of the other, as described in the existing literature, the effect of a hypothetical competition between both species on post-mortem interval was discussed.

scholarly journals Post-Mortem Interval Estimation Based on Insect Evidence: Current Challenges

Insects ◽  
2021 ◽  
Vol 12 (4) ◽  
pp. 314
Author(s):  
Szymon Matuszewski
Keyword(s):  
Forensic Entomology ◽  
Interval Estimation ◽  
Review Literature ◽  
Error Rates ◽  
Post Mortem ◽  
Post Mortem Interval ◽  
Research Areas ◽  
Pmi Estimation

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.

scholarly journals Flies Do Not Jump to Conclusions: Estimation of the Minimum Post-Mortem Interval for a Partly Skeletonized Body Based on Larvae of Phormia regina (Diptera: Calliphoridae)

Insects ◽  
2021 ◽  
Vol 12 (4) ◽  
pp. 294
Author(s):  
Senta Niederegger ◽  
Gita Mall
Keyword(s):  
Forensic Entomology ◽  
Female Body ◽  
The Other ◽  
Phormia Regina ◽  
Post Mortem ◽  
Post Mortem Interval ◽  
Other Hand

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.

scholarly journals Virtual forensic entomology: Improving estimates of minimum post-mortem interval with 3D micro-computed tomography

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 ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Forensic Entomology ◽  
Post Mortem ◽  
Micro Computed Tomography ◽  
Post Mortem Interval

A preliminary investigation of insect succession on carrion in Calabria (southern Italy)

2010 ◽  
Vol 3 (2) ◽  
pp. 97-110 ◽  
Author(s):  
Pietro Brandmayr ◽  
Silvia Greco ◽  
Tullia Zetto Brandmayr Brandmayr ◽  
Teresa Bonacci ◽  
Claudio Tersaruolo ◽  
...  
Keyword(s):  
Musca Domestica ◽  
Relative Abundance ◽  
Southern Italy ◽  
Preliminary Investigation ◽  
Botanical Garden ◽  
Calliphora Vicina ◽  
Post Mortem ◽  
Insect Fauna ◽  
Chrysomya Albiceps ◽  
Post Mortem Interval

AbstractWe present data from the first study of successional patterns of insect fauna in Calabria (southern Italy). The aim was to identify and qualitatively assess the major taxa of forensic importance in this region. Studies were conducted in autumn-winter 2006, summer 2007 and winter 2008 in the Botanical Garden, University of Calabria. Over 50 taxa were collected and identified. The most abundant fly species were Lucilia caesar (Linnaeus, 1758), L. sericata (Meigen, 1826), Chrysomya albiceps (Wiedemann, 1819), Calliphora vicina Robineau-Desvoidy, 1830, C. vomitoria (Linnaeus, 1758), Sarcophaga spp., Amobia sp ., Musca domestica Linnaeus, 1758, and Muscina stabulans ((Fallén). The successional patterns, relative abundance of adult sarcosaprophagous insects, carcass decay, diversity and seasonality of species are described and the taxa useful for estimating the post-mortem interval (PMI) are identified. The data of this study could be very useful for further forensic investigations in southern Italy.

scholarly journals IDENTIFIKASI LARVA LALAT DALAM KEPENTINGAN POST MORTEM INTERVAL PADA BANGKAI TIKUS (Rattus novergicus) YANG DIBERI CIU OPLOSAN DI SCIENCE TECHNO PARK UNIVERSITAS MUHAMMADIYAH PURWOKERTO

2019 ◽  
Vol 2 (1) ◽  
Author(s):  
Dita Pratiwi Kusuma Wardani ◽  
Arif Mulyanto
Keyword(s):  
Post Mortem ◽  
Chrysomya Megacephala ◽  
Post Mortem Interval ◽  
Chrysomya Bezziana

Ciu merupakan salah satu minuman tradisional Banyumas yang mengandung alkohol. Ciu dapat dibuat oplosan dengan bahan lain untuk meningkatkan cita rasa dan sensasi minuman, namun berdampak buruk bagi kesehatan bahkan dapat menyebabkan kematian. Serangga berperan penting dalam penentuan Post Mortem Interval. Adanya kandungan obat atau senyawa yang terdapat pada jenazah dapat mempengaruhi perkembangan larva lalat. Tujuan penelitian ini untuk mengetahui spesies larva lalat yang terdapat pada bangkai tikus yang diberi ciu oplosan. Penelitian dilakukan secara observasional deskriptif. Penelitian dilakukan pada bulan Juli-Agustus 2018.Sebanyak tiga ekor tikus Wistar diberi ciu yang dioplos dengan minuman berenergi, ditunggu hingga mati kemudian diletakkan di Science Techno Park Universitas Muhammadiyah Purwokerto. Larva yang diambil 10% dari total populasi yang ditemukan setiap harinya. Identifikasi larva melalui pembuatan preparat posterior spirakel. Data dianalisis dengan univariate. Larva Calliphora sp. (19,10%), Sarcophaga sp. (0,71%), Chrysomya megacephala (13,28%), dan Chrysomya bezziana (13,86%) teridentifikasi pada bangkai tikus yang diberi ciu oplosan di Science Techno Park Universitas Muhammadiyah Purwokerto. Kata Kunci: Ciu, Oplosan, Post Mortem Interval, Larva Lalat

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