Stegnocephala semicircularis (Suffrian, 1863)  

Yellow body; black ends of feelers; a semicircular speck at the back of the smooth pronotum, along with the scutellum and the elytra, deep steel blue; fine punctures and stripes, vanishing at the back, with flat, glossy interspaces. [Translated from the original German in Suffrian, 1863].