Forensic entomology

Definition

The application of entomological knowledge and arthropod evidence to legal investigations, including criminal cases, civil litigation, and regulatory enforcement. Practitioners use insect development, succession patterns, and distribution to estimate time of death, determine whether remains were moved, detect neglect or abuse, assess food contamination, and identify toxic substances. The field encompasses three recognized subdisciplines: medico-legal (criminal) entomology involving human remains; urban entomology addressing property disputes and structural infestations; and stored-product entomology concerning commodity contamination and trade disputes.

Etymology

From Latin 'forensis' (of the forum, public) + Greek 'entomon' (insect) + '-logia' (study of)

Example

Forensic entomologists analyzing a cadaver may use the developmental stage of blowfly larvae (Lucilia sericata) and the presence of later-arriving carrion beetles (Silphidae) to bracket the postmortem interval and infer whether the body remained exposed or was concealed.

Synonyms

• medico-criminal entomology
• forensic insect science

Related Terms

• medico-legal entomology
• urban entomology
• stored-product entomology
• postmortem interval
• insect succession
• carrion ecology
• toxicology
• blowfly
• dermestid

Usage Notes

Medico-legal entomology is often used interchangeably with forensic entomology in criminal contexts, though the broader term includes non-criminal applications. Practitioners must distinguish between minimum postmortem interval (based on oldest specimen on remains) and actual time since death. Temperature data and local faunal knowledge are critical; estimates without site-specific calibration carry significant uncertainty. Urban and stored-product subfields require expertise in pest management and food safety rather than decomposition ecology.