This 20 mm long beetle looked very different to other ground beetles because of its flattened body and a thorax that is notched both anteriorly and posteriorly. Elytra showed fine parallel ridges and had a metallic sheen which reflected purple and teal colours. Legs were long had short spines.
These ground beetles are said to feed on caterpillars. They are strongly attracted to U-V emitting lights and can congregate in large numbers but do not stay in one place for long. They stay hidden during the day but are very active at night.