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General DescriptionMember of the chalybeus group, with large head and short elytra, each eltron with at least 4 complete, punctate striae, elytra more or less iridescent. Piceous, outer margin of elytyra and oftern entire prothorax, brown, appendages paler but antenae more or less infuscated as a rule. Microsculpture on disc of prothorax open, forming evident meshes, slightly iridescent. Hind angles of prothorax more or less denticulate. Outer elytral striae obliterating, 5th more or less interrupted. Length 3.7-4.8 mm.