About Calosoma sycophanta (Linnaeus, 1758)
Calosoma sycophanta, a large ground beetle, reaches an adult body length of roughly 21 to 35 millimeters, which equals 0.83 to 1.38 inches. This species has distinct characteristic coloration: its elytra are a bright metallic green, its scutellum is metallic blue, and its head is solid black. All these body colors display iridescent shading that shifts between green, blue, bronze, copper, gold, and black depending on the direction and intensity of light it is viewed under. The pronotum of this beetle is shaped transversely, narrows sharply toward the posterior end of the body, and has a wrinkled, punctured texture. The elytra are flattened, with distinct, easily visible punctures arranged in striae. This species is native to Europe, where it occurs in most European countries. It is also naturally present in the eastern Palearctic realm, the Near East, and North Africa. It has an introduced range in the Nearctic realm, after being imported to New England in 1905 to control gypsy moth populations.
