Succession patterns spanning three seasons for insect fauna on pig cadavers were studied in Changwon, South Korea in 2018 and 2019. A total of 107 species belonging to 41 families in six orders were collected and identified. Four decomposition stages were recognized: fresh, bloated, decay, and dry. The number of species increased significantly after the fresh stage and reached the maximum number by the decay stage. The sequence of insect succession followed a general pattern in which Diptera peaked initially and Coleoptera peaked later. Chrysomya pinguis was the most frequently present species, and the timing of its different developmental stages on cadavers could be the most important indicator for post-mortem interval estimations in Changwon. Spatial and seasonal differences in the richness of insects were not significant. However, Calliphora nigribarbis occurred exclusively in spring and autumn, and Pheropsophus javanus occurred exclusively in one locality. Therefore, these species may be important for characterizing the different seasons or locations during post-mortem interval estimations. A list of the insects associated with above-ground pig cadavers during the three seasons was compiled, and it may be useful for estimating the time since death in areas with a similar bioclimate.

Black larder beetles prefer to feed on decomposing animal bodies, particularly those that are dried. When conditions are dry and warm, these beetles often appear in large numbers on dried animal carcasses. In our case, the dried carcasses of several cats were found nearly skeletonized at a villa in Daegu Metropolitan City on July 13, 2022. There were very few empty pupae of Lucilia sericata (Meigen) in the villa, but many adult black larder beetles, larvae, and larval cast skin (exuviae) (<i>Dermestes haemorrhoidalis</i> Küster) belonging to the family of larder beetles (Dermestidae) were found. We estimated the minimum post-mortem interval to be 44.5 days using temperature data from the nearest meteorological observatory and reported animal carcass decomposition and Dermestidae developmental rates. Police investigation confirmed that the cats were alive at least 3 months ago. Consequently, the neglected cats could not have been deceased in the villa for more than 3 months. As a result, the estimate closely matched the statement from the suspect.