Description: Large, dark-coloured grasshopper (♂ 19-25 mm, ♀ 23-25 mm). The median keel of the pronotum is elevated and without transversal grooves. Hind wings are bright red with a dark tip (only visible in flight). The wings extend beyond the hind knee (♂) or do not reach the knee (♀). Similar species:Celes variabilis Adults: from July to October Song: No stridulation. Males produce a rattling sound in flight. Habitat: Grasslands, mostly above 500m elevation. Distribution: Formerly known from many mountain areas, but due to climate change and distruction of habitats it has become very scarce.
Psophus stridulus, male (Author: Dobos Zsolt)
Psophus stridulus, female (Author: Gilles San Martin, source: flickr.com, CC BY-SA 2.0)