鉴别特征
Black, dull, covered with dense brownish hairs and coarse puncturing. Antennae reddish. Pronotum with lateral margins thickened. Legs brownish-black, tarsi brownish-yellow; middle and hind femora with a faint genicular spine. Abdomen with very pronounced transverse sulci. Length of body 18-21, pronotum 4.8-5mm.