Chorthippus mollis - Lesser Grasshopper
(Charpentier, 1825)

Description: Small species (♂ 13-17 mm, ♀ 17-22 mm). Similar in all characters to Ch. biguttulus and Ch. brunneus , fore wing is slightly longer than hind knee.
Similar species: The Ch. biguttulus-group (Ch. biguttulus, Ch. mollis, Ch. brunneus), these species are very similar to each other. Best identification is by listening to the male's calling song.
Adults: from June to November, most abundant in late summer.
Song:
The song is a characteristic, long (10-20 seconds) buzzing and clicking chirp that becomes gradually louder and then slows down slightly at the end. Similar to the song of Ch. apricarius , but more raspy.

Source: Orthoptera Species File (lab recording, 26 °C)
Habitat: Warm and dry places, pastures, meadows. They are moderately good fliers.
Distribution:
Widespread and common.

Chorthippus mollis, male
(Author: Gilles San Martin, source: flickr.com, CC BY-SA 2.0)

Chorthippus mollis, female
(Author: Varga Szabolcs, source: ízeltlábúak.hu, CC BY 4.0)