Forensic entomology when the evidence is “no insect.” Best carrion fly species for predicting maximum postmortem interval in the United Arab Emirates

2021 ◽  
Vol 328 ◽  
pp. 110999
Author(s):  
Jeffrey D. Wells ◽  
Amber E. MacInnis ◽  
Maurell A. Dsouza ◽  
Zain Ul Abdin ◽  
Sara Al Mughawi ◽  
...  
Keyword(s):  
United Arab Emirates ◽  
Forensic Entomology ◽  
Postmortem Interval

scholarly journals Entomotoxicología Forense En Cadáveres En Estado De Descomposición

2021 ◽  
Vol 1 (Esp) ◽  
pp. 17-32
Author(s):  
María José Hidalgo Pozo
Keyword(s):  
Forensic Entomology ◽  
Forensic Toxicology ◽  
Postmortem Interval ◽  
Palabras Clave ◽  
Para Determinar

Resumen Introducción: la entomotoxicología se enfoca en la aplicación del análisis toxicológico a los insectos que se encuentran en los cadáveres, para identificar la presencia de drogas y toxinas en los tejidos o restos cadavéricos. Objetivo: realizar una revisión sobre la utilidad de la entomotoxicología como herramienta para las Ciencias Forenses, en cadáveres que se encuentran en estado de descomposición avanzada, cuando no es factible la recolección de muestras biológicas. Materiales y métodos: se realizó una búsqueda en Pubmed, Scopus, Scielo y Google Académico con las palabras clave: Forensic entomology / entomología forense, Forensic entomotoxicology / entomotoxicología forense, Criminology / criminología, Forensic toxicology / toxicología forense, Poisoning / envenenamiento y Postmortem interval determination / determinación del intervalo postmortem. Se incluyeron publicaciones de acceso libre, en español e inglés; publicados desde 1992 hasta marzo 2021. Resultados: la búsqueda inicial arrojó 3476 referencias (Pubmed: 50; Scopus: 402; Scielo: 114; Google académico: 2910). Quinientas sesenta y seis publicaciones fueron excluidas por duplicación; 49 fueron incluidas en esta revisión. Conclusiones: los insectos permiten un análisis fiable de toxinas y drogas cuando no es posible realizarlo directamente desde los restos cadavéricos. En Ecuador, se requieren estudios que indaguen la aplicación y desarrollo de esta rama para determinar su precisión y utilidad a nivel local, provincial y regional. A nivel global, se debe expandir la investigación entomotoxicológica en escenarios acuáticos o de incendios; así como el impacto del cambio climático sobre la entomofauna y sus repercusiones en el análisis toxicológico de las distintas especies.

scholarly journals Postmortem interval estimation based on Chrysomya albiceps (Diptera, Calliphoridae) in a forensic case in the Andean Amazon, Caquetá, Colombia

2017 ◽  
Vol 47 (4) ◽  
pp. 369-374 ◽  
Author(s):  
Yardany RAMOS-PASTRANA ◽  
Marta WOLFF
Keyword(s):  
Urban Area ◽  
Forensic Entomology ◽  
Interval Estimation ◽  
Postmortem Interval ◽  
The Body ◽  
Published Data ◽  
Chrysomya Albiceps ◽  
Human Corpse ◽  
Forensic Case ◽  
Colombian Amazon

ABSTRACT This is the first application of forensic entomology in a case involving a human corpse found in the urban area of the Municipality of Florencia, Caquetá, Colombia, in the Piedemont of the Colombian Amazon. Three days after removing the body from the scene, pupae and puparia were collected and identified as Chrysomya albiceps (Wiedemann, 1819) (Diptera, Calliphoridae). The postmortem interval was estimated on the basis of previously published data and verified through accumulated degree hours (ADH) and intrapuparial development. The estimated minimum postmortem interval was of 229 hours (9.5 days).

Estimating the Age of Forensically Useful Blowfly, Sarconesia chlorogaster (Diptera: Calliphoridae), Using Larval Length and Weight

2019 ◽  
Vol 56 (4) ◽  
pp. 915-920 ◽  
Author(s):  
Melise Cristine Lecheta ◽  
Mauricio Osvaldo Moura
Keyword(s):  
South America ◽  
Forensic Entomology ◽  
Growth Models ◽  
Postmortem Interval ◽  
Larval Weight ◽  
Important Species ◽  
Larval Length ◽  
Different Temperatures

AbstractDetermining the age of an insect collected in a corpse is a key element to estimate the minimum postmortem interval in forensic entomology. Along with models of accumulated degree-hours, the estimation of the age based on larval weight and length is among the most common methods for this purpose. Sarconesia chlorogaster (Wiedemann, 1830), along with other Calliphoridae, is an important species in forensics in South America. However, studies analyzing the weight and length of S. chlorogaster larvae during development have not yet been done. In this work, we develop growth models based on the weight and length of larvae in different temperatures and provide formulas that can be used to estimate the age of the larvae based on the weight and length for each temperature. Larvae were reared at six temperatures (10, 15, 20, 25, 30, 35°C), and the measurements of larval length and weight were taken during all development until they stopped feeding. For the measurements, we attempted to use methodologies that can be easily replicated and do not require equipment that could be of difficult access. The results of this work come to complement and improve the use of S. chlorogaster in forensic applications.

scholarly journals Papel das moscas (Insecta, Diptera) na Entomologia Forense

2018 ◽  
Vol 2 (1) ◽  
pp. 28 ◽  
Author(s):  
Wellington Emanuel Dos Santos
Keyword(s):  
Key Words ◽  
Forensic Entomology ◽  
Postmortem Interval ◽  
Main Species ◽  
Human Cadavers

<p style="text-align: justify;">Esse trabalho apresenta uma breve revisão do papel que as moscas (Insecta, Diptera) desempenham na Entomologia Forense. São apresentadas discussões sobre ocorrência em cadáveres humanos e carcaças de vertebrados, estimativas de Intervalo Pós-Morte (IPM), estudos realizados no Brasil e em outros países, principais famílias de importância forense e aspectos biológicos, ecológicos e de distribuição das principais espécies.</p><p style="text-align: justify;"><strong>Palavras chave</strong>: Calliphoridae, Diptera, Intervalo Pós-Morte, Muscidae, Sarcophagidae.</p><p style="text-align: justify;"><strong>Abstract</strong>: This paper presents a brief review of the role of flies (Insecta, Diptera) in Forensic Entomology. Discussions on presence in human cadavers and vertebrate carcasses, Postmortem Interval (PMI) estimations, studies carried out in Brazil and other countries, families of forensic importance and biological, ecological and distribution aspects of the main species are presented.</p><p style="text-align: justify;"><strong>Key words</strong>: Calliphoridae, Diptera, Postmortem Interval, Muscidae, Sarcophagidae.</p>

scholarly journals A microbial clock provides an accurate estimate of the postmortem interval in a mouse model system

eLife ◽  
2013 ◽  
Vol 2 ◽  
Author(s):  
Jessica L Metcalf ◽  
Laura Wegener Parfrey ◽  
Antonio Gonzalez ◽  
Christian L Lauber ◽  
Dan Knights ◽  
...  
Keyword(s):  
Microbial Community ◽  
Mouse Model ◽  
Forensic Entomology ◽  
Postmortem Interval ◽  
Accurate Estimate ◽  
Model System ◽  
Community Data ◽  
Novel Method ◽  
Mouse Model System ◽  
Death Investigation

Establishing the time since death is critical in every death investigation, yet existing techniques are susceptible to a range of errors and biases. For example, forensic entomology is widely used to assess the postmortem interval (PMI), but errors can range from days to months. Microbes may provide a novel method for estimating PMI that avoids many of these limitations. Here we show that postmortem microbial community changes are dramatic, measurable, and repeatable in a mouse model system, allowing PMI to be estimated within approximately 3 days over 48 days. Our results provide a detailed understanding of bacterial and microbial eukaryotic ecology within a decomposing corpse system and suggest that microbial community data can be developed into a forensic tool for estimating PMI.

scholarly journals First Medicolegal Forensic Entomology Case of Central Amazon: A Suicide by Hanging with Incomplete Suspension

2014 ◽  
Vol 7 (1) ◽  
pp. 12-15 ◽  
Author(s):  
Eduardo Rodrigues de Souza ◽  
José Albertino Rafael ◽  
Francisco Felipe Xavier Filho ◽  
Juliana Oliveira Da-Silva-Freitas ◽  
Janyra Oliveira-Costa ◽  
...  
Keyword(s):  
Forensic Entomology ◽  
Interval Estimation ◽  
Postmortem Interval ◽  
Primary Forest ◽  
Blow Fly ◽  
Terra Firme ◽  
Central Amazon ◽  
Ecological Information ◽  
First Case ◽  
The City

This report describes the first medicolegal forensic entomology case of Central Amazon. A suicide by hanging took place in a “terra firme” primary forest on an upland plateau. The postmortem interval estimation was calculated on the basis of the biology of the blow fly Hemilucilia segmentaria (Fabricius) and also on the ecological succession pattern of the silphid beetle Oxelytrum cayennense (Sturm). This is the first case where the ecological information of a beetle was used as a forensic indicator in Brazil. Preliminary studies in the urban area of the city of Manaus, state of Amazonas, and in similar habitats of primary forest in the Reserva Florestal Adolpho Ducke, close to where the case occurred, were instrumental in helping the postmortem interval estimation. Primeiro Caso de Entomologia Médico-legal da Amazônia Central: Um Suicídio por Enforcamento com Suspensão Incompleta Resumo. Este relato descreve o primeiro caso de entomologia forense médico-legal na Amazônia Central. Um suicídio por enforcamento ocorrido em um platô de “terra firme” em floresta primária. A estimativa de intervalo pós-morte foi calculada com base na biologia da mosca varejeira Hemilucilia segmentaria (Fabricius) e também pelo padrão de sucessão ecológica do besouro silfídeo Oxelytrum cayennense (Sturm). Este é o primeiro caso onde as informações ecológicas de um besouro foram usadas como indicador forense no Brasil. Estudos preliminares realizados em área urbana na cidade de Manaus e em hábitat semelhante em floresta primária, na Reserva Florestal Adolpho Ducke, próximo do local onde o caso ocorreu, foram fundamentais para ajudar para a estimativa do intervalo pós-morte.

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