This is a large marsh grasshopper video.
Translated from Belgian daily Het Laatste Nieuws:
Last weekend, in Brussels, after a fifty years’ absence, a large marsh grasshopper was discovered.
This was announced by the society ‘Milieu Commissie Brussel en Omgeving’ (MOB). According to MOB, the return of this grasshopper species is very unique, and a consequence of the many years’ effort by its members for conservation.
More specifically, this was a female of the species ‘Stethophyma grossum’.