Campsosternus rutilans

Campsosternus rutilans is a species of click beetle with iridescent metallic coloration endemic to the Philippines. It is polymorphic and can vary greatly in coloration, ranging from a metallic green, to dark bronze, to a bright coppery-gold. It is a large beetle, with a length of 33 mm (1.3 in), and a width of 12 mm (0.47 in).^[1][2]

Campsosternus rutilans
Gold morph of Campsosternus rutilans in Bukidnon, Philippines
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Coleoptera
Suborder:	Polyphaga
Infraorder:	Elateriformia
Family:	Elateridae
Genus:	Campsosternus
Species:	C. rutilans
Binomial name
Campsosternus rutilans Chevrolat, 1841

Its thorax is slightly sinuous in outline with a prominent rim. The upper surface of the thorax is obliquely depressed on the posterior corners. The tiny scutellum is transversely rounded and elevated. The posterior ends of the elytra end in sharp but obtuse tips.^[1]

Campsosternus rutilans was first described by the French entomologist Louis Alexandre Auguste Chevrolat in 1841 from a specimen collected from Manila. The specific name rutilans is Latin for "glowing or glittering with a reddish-golden light."^[1]