Calosoma Scrutator is a species of ground beetle that goes by several common names. These synonyms include the fiery searcher beetle, the hunter beetle, the forest hunter, the fiery ground beetle, and the brilliant ground beetle. These beetles are known for their metallic green or blue exoskeleton and their voracious appetite for other insects, particularly caterpillars. Calosoma Scrutator beetles are often considered beneficial to have around gardens and other ecosystems as they can control pest populations. Their striking appearance and helpful role in nature make them a favorite among insect enthusiasts and gardeners alike.