Size: 4.5-7.5mm Basic colour: Red and blue Pattern colour: Head and pronotum pale reddish brown, elytra metallic blue, with basal third or more of intervals 1-2 (including scutellum) reddish brown. Pronotoum: Narrow and slightly elongate, sides sinuate. Leg colour: Pale yellow-brown. Confusion species: Brachinus crepitans
Size: 4.4-5.2mm Basic colour: Black with a metallic bronze reflection. Pattern colour: Greenish highlights on frons and pronotal hind angles. Pronotoum: Very shiny. Leg colour: Appendages black, shining metallic. Confusion species: Bembidion virens