Published online by Cambridge University Press: 31 May 2012
Of the usual elongate oblong form, about 2-2/3 times as long as wide, moderately convex; color black with faint greenish lustre, base of antennae, tarsi, and in the male the apex of the front tibiae dull rufous. Pubescence thin, not concealing the derm, consisting of sparse subrecumbent fulvocinereous hairs abundantly intermixed with suberect black setae over the entire surface; pronotal and elytral marginal fringe of longer erect black hairs which are not at all recurved. Integuments polished throughout.