Insects Associated with Ancient Human Remains: How Archaeoentomology Can Provide Additional Information in Archaeological Studies

Abstract

Archaeoentomology is the study of insects and other arthropods recovered from an archaeological site; they can be found in association with ancient human and animal remains, food, artefacts or they can be related to the environment and its changes throughout the time. Within archaeoentomology, the branch of “funerary archeoentomology” considers insects and other arthropods especially in association with human remains in funerary and burial contexts. The presence and the location of certain insect species closely associated with or nearby the remains, can be valuable in gathering information about the ecological situation at the time of burial and the changes that occurred in the environment up until the discovery of the body. Funerary archaeoentomology investigations have been carried out globally, primarily in countries like Italy, Peru, the United Kingdom and France. Similarly to forensic entomology contexts, the abundance and diversity of insects are affected by the type of burial, the macro and micro-environment of and surrounding the burial, the items associated with the cadaver, the post-mortem practices, and the time that has elapsed from the body deposition to the discovery and the excavation. While funerary archaeoentomology and forensic entomology remain two well-distinguished disciplines, the sampling practice, the insect identification process, and the analyses of the burial ecology in funerary archaeoentomology studies follow the best practices and the general guidelines of forensic entomology. In both disciplines, the correct identification of the insects is key to providing correct information. Various methods have proven effective for insect identification, i.e., morphological, molecular and chemical analysis. This review aims to collect the current knowledge in funerary archaeoentomology, discuss the strengths and weaknesses of insect identification methods in an archaeological context, and describe the groups of the most relevant insects and other arthropods found in association with ancient human remains worldwide. Furthermore, recommendations will be provided to advance the practices of archaeoentomology examinations.