The potanini group

Diagnosis. Members of this group can be recognized by the following characters: (1) large tibial apophysis (1/2 of length of cymbium), (2) transversal seminal duct (in ventral view), (3) long embolus starting at 6–7 o’clock and (4) epigynal fovea with septum tapering anteriorly.

Composition. Only two species belong to this group: B. potanini (Schenkel, 1963) and B. schenkeli Marusik & Logunov, 1995 .