5. Parena dorsigera species group

This species group contains two species distributed throughout East Asia, north to Japan, south to Laos and Vietnam, and west to Nepal. They are characterized by: dorsum uniformly brown, elytra with indistinct middle paler patch in a few specimens; pronotum nearly quadrate; elytral apices truncate, outer apical angles distinct (Figs 5G–J); median lobe of aedeagus stout to very stout (AL/AW 3.5–4.2), apical lamella short, coniform; gonocoxite II of ovipositor rectangular, apex with five to seven ensiform setae, subequally arranged or grouped at angles.