Chorthippus dichrous - Two-coloured Grasshopper
(Eversmann, 1895)

Description: Medium-sized, brownish (sometimes greenish) locust with well-developed wings (♂ 12-18 mm, ♀ 20-24 mm). Typically, the upper part of the body is dark brown, while the lower part is lighter. The side keels of the pronotum are almost straight. Fore wing is narrow and long, reaching beyond the hind knee. The medial field is not abruptly widening.
Similar species: Chorthippus dorsatus and Ch. oschei 
Adults: from July to September
It consists of 3 to 6 very short (0,5 sec.) chirps with irregular intervals.

Source: Orthoptera Species File (lab recording, 35 °C, 500 Hz high pass filter)
Habitat: Meadows.
Widespread but quite scarce (e.g. Kiskunság, Mezőföld).

Chorthippus dichrous, male
(Author: Kiss Tamás, source: ízeltlábú, CC BY 4.0)

Chorthippus dichrous, female
(Author: Kiss Tamás, source: ízeltlábú, CC BY 4.0)