According to wiki there should be a hump on 3 th abdominal segment to be p. germanica.
See 3 th image here: http://www.dipter...d_id=35379, I think it shows that.
On distinguishing females of British Panorpa (and error in key for females by Fraser, 1959) vide Plant, 1991 - The separation of females of British species of Panorpa (Mecoptera: Panorpidae) - Br. J. Ent. Nat. Hist., 4: 157-162