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

Abstract

Resumo. Em investigacoes criminais, a entomologia forense torna-se uma importante ferramenta em uma das suas principais aplicacoes que sao os calculos de estimativa de intervalo pos-morte (IPM), onde os dipteros da familia Calliphoridae constituem uma das principais familias de interesse forense. O presente trabalho teve como objetivo verificar a ocorrencia das especies desta familia durante o processo de decomposicao de carcacas suinas exposta durante as quatro estacoes do ano em um fragmento de Mata Atlântica na cidade do Salvador, Bahia, Brasil. Durante o experimento, os insetos adultos foram capturados em armadilhas especificas, e os imaturos coletados sobre a carcaca e criados para identificacao pos-emergencia. Alem disso, verificamos a correlacao entre as especies que visitam a carcaca com aquelas que se desenvolvem na mesma, relacionando-a as fases da decomposicao. Foram coletados 29136 adultos e do total de imaturos coletados apenas 1278 emergiram no laboratorio. Os adultos capturados pertenciam as seguintes especies: 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 laboratorio, apos a emergencia, foram identificados como: C. macellaria , C. megacephala , C. albiceps , C. putoria , H. segmentaria e L. eximia . Constatou-se que ha diferencas na abundância entre as especies durante o experimento, sendo a especie C. albiceps a mais prevalente. Esse trabalho contribuiu com informacoes essenciais para a implementacao deste tipo de pericia na rotina do Laboratorio 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, Brazil Abstract. 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:\xa0 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.