Developmental models of the carrion beetle Thanatophilus rugosus (Linnaeus, 1758) (Coleoptera: Silphidae)

Coleoptera are currently considered a fundamental tool to help solve criminal investigations, allowing forensic entomologists to estimate post-mortem intervals and obtain other ecology-related information. Thanatophilus rugosus (Linnaeus, 1758) is an important necrophagous beetle distributed through most of the Palaearctic region, where it is readily found on human bodies and animal carcasses. In this study, the new thermal summation models for all the developmental stages of Thanatophilus rugosus are provided. Beetles were reared at six different constant and ecologically relevant temperatures (12, 14, 16, 18, 20, and 22 degrees C), and their developmental times were measured. Thermal summation constants were calculated for each developmental stage (egg, three larval instars, post-feeding stage, and pupa).

Automated summary

Coleoptera are considered an important tool in criminal investigations, with Thanatophilus rugosus being a significant necrophagous beetle. New thermal summation models for all developmental stages of Thanatophilus rugosus have been provided in this study, helping forensic entomologists estimate post-mortem intervals. The study involved rearing beetles at different temperatures and calculating thermal summation constants for each developmental stage.