10. Bagous dieckmanni group
Diagnosis. Pronotum rugulose, strongly sulcated longitudinally in the middle. Elytral scales shining. Sclerites complex within tube of penis body with a pair of submedian subapical and posteriorly joined sclerites (char. 84.2). Median setal brush behind orifice situated at base of subapical sclerites (char. 92.1). Penis body with apex distinctly sagittate (char. 59.1).
Remarks. The single Palaearctic species presently included in this group is similar in habitus to those of the B. argillaceus group, from which it differs in the rugulose sculpture of the pronotum.
Species included. PAL: * Bagous dieckmanni Egorov & Gratshev, 1990 .