Análise temporal de Calliphoridae (Diptera: Cyclorrhapha) no processo de decomposição em carcaças de suínos (Sus scrofa Linnaeus) em Salvador, Bahia, Brasil.

Abstract

Resumo. Em investigações criminais, a entomologia forense torna-se uma importante ferramenta em uma das suas principais aplicações que são os cálculos de estimativa de intervalo pós-morte (IPM), onde os dípteros da família Calliphoridae constituem uma das principais famílias de interesse forense. O presente trabalho teve como objetivo verificar a ocorrência das espécies desta família durante o processo de decomposição de carcaças suínas exposta durante as quatro estações do ano em um fragmento de Mata Atlântica na cidade do Salvador, Bahia, Brasil. Durante o experimento, os insetos adultos foram capturados em armadilhas específicas, e os imaturos coletados sobre a carcaça e criados para identificação pós-emergência. Além disso, verificamos a correlação entre as espécies que visitam a carcaça com aquelas que se desenvolvem na mesma, relacionando-a as fases da decomposição. Foram coletados 29136 adultos e do total de imaturos coletados apenas 1278 emergiram no laboratório. Os adultos capturados pertenciam às seguintes espécies: Cochliomyia macellaria (Fabricius), Chrysomya megacephala (Fabricius), Chrysomya albiceps (Wiedemann), Chrysomya putoria (Wiedemann), Lucilia eximia (Wiedemann), Mesembrinella bellardiana (Aldrich), Hemilucilia segmentaria (Fabricius) e Chloroprocta idiodea (Robineau-Desvoidy). Os imaturos coletados e criados no laboratório, após a emergência, foram identificados como: C. macellaria, C. megacephala, C. albiceps, C. putoria, H. segmentaria e L. eximia. Constatou-se que há diferenças na abundância entre as espécies durante o experimento, sendo a espécie C. albiceps a mais prevalente. Esse trabalho contribuiu com informações essenciais para a implementação deste tipo de perícia na rotina do Laboratório de Entomologia Forense do DPT-BA.Temporal analysis of Calliphoridae (Diptera: Cyclorrhapha) in the process of decomposition in carcasses of swine (Sus scrofa Linnaeus) in Salvador, Bahia, BrazilAbstract. In criminal investigations, Forensic Entomology becomes an important tool for main applications, which are estimates of postmortem interval (IPM), where Diptera of the Calliphoridae family constitute one of the main families of forensic interest. The present work had as objective to verify the occurrence of the species of this family during the decomposition process of swine carcasses exposed during the four seasons of the year in a fragment of Atlantic Forest in the city of Salvador, Bahia, Brazil. During the experiment, adult insects were captured in specific traps, and immature stages collected on the carcass created until the adult emergency for identification. In addition, we verified the correlation between the species that visit the carcass with those that develop in the same, related to the phases of the decomposition. A total of 29136 adults were collected and of the total number of immatures collected, only 1278 emerged in the laboratory. The captured adults belonged to the following species: Cochliomyia macellaria (Fabricius), Chrysomya megacephala (Fabricius), Chrysomya albiceps (Wiedemann), Chrysomya putoria (Wiedemann), Lucilia eximia (Wiedemann), Mesembrinella bellardiana (Aldrich), Hemilucilia segmentaria (Fabricius) and Chloroprocta idiodea (Robineau-Desvoidy) (Robineau-Desvoidy). The immatures collected and created in the laboratory after the emergency were identified as: C. macellaria, C. megacephala, C. albiceps, C. putoria, H. segmentaria and L. eximia. It was verified that there are differences in the abundance between the species during the experiment, being the species C. albiceps the most prevalent. This work contributed with essential information for the implementation of this type of expertise in the routine of the Forensic Entomology Laboratory, DPT-BA.

Seasonal distribution of Calliphoridae and Mesenbrinellidae (Diptera) associated with the decomposition of a clothed animal model in a forest reserve in the Central Amazon

“…The present work showed greater richness than that found by other studies carried out in Brazil (Souza et al 2008, Cavalcante et al 2015, Amat et al 2016, Gaedke and Mouga 2017, Faria et al 2018, Pamponet et al 2019), including that found by Ururahy-Rodrigues et al (2013) in the same forest reserve. This greater diversity indicates that clothes can positively influence carcass diversity.…”

“…Studies on Diptera have been well discussed in Brazil, where the biology of the main groups has already been studied, especially Calliphoridae (e.g., Barros-Souza et al 2012) and Sarcophagidae (e.g., Barbosa et al 2019). Other studies conducted in this country addressed taphonomic and ecological aspects (Souza et al 2008, Cavalcante et al 2015, Amat et al 2016, Gaedke and Mouga 2017, Faria et al 2018, Pamponet et al 2019).…”

“…Forensic entomology (FE) uses information about the biology of arthropods, associated with the decomposition of corpses, to obtain useful information in judicial investigations (Amendt et al 2007). Species of Diptera are among the most used organisms for calculating the postmortem interval (PMI), due to the ease of rearing immatures aspects (Souza et al 2008, Cavalcante et al 2015, Amat et al 2016, Gaedke and Mouga 2017, Faria et al 2018, Pamponet et al 2019.…”

Rapid assessment of the knowledge about Coleoptera (Arthropoda: Insecta) of forensic importance in an urban fragment of the Atlantic Forest in Salvador, Bahia, Brazil

“…Decomposing bodies serve as a source of resources for several groups of organisms. Insects, which are pioneers in locating the body, use this new "micro-habitat" in various ways as copulation and/or reproduction sites, as well as a source of food and hiding (Catts & Goff 1992;Lopes et al 2018;Pamponet et al 2019). In this sense, animals that visit carcasses are valuable tools for different studies in forensic sciences (Oliveira-Costa 2007;Mise et al 2007;Ramos et al 2018;Lopes et al 2018;Pamponet et al 2019).…”