Chorthippus albomarginatus - Lesser Marsh Grasshopper
(De Geer, 1773)

Description: Relatively small grasshopper (♂ 13-15 mm, ♀ 18-23 mm). Ground colour is greenish to brownish, hind knee has the same colour as the tibiae. A light stripe often runs along the lower edge of the female's fore wing. The lateral keels of the pronotum are more or less straight. The wings extend to about the hind knee, but the Chorthippus lobe is sometimes absent. The male abdomen has no reddish colouration.
Similar species: Chorthippus oschei, Chorthippus dorsatus, Euchorthippus species
Adults: from July to October
Song:
The song is very faint so the species is often overlooked. It consists of regular buzzing sounds, 0.5 sec long, repeated 2-5 times with 2-4 sec pauses. Each buzzing starts with a louder chirp and stops abruptly. Its song is similar to that of Ch. brunneus , but the buzzing sounds are slightly longer.

Source: Orthoptera Species File (lab recording))
Habitat: Wet meadows and hayfields. It can moderately fly.
Distribution:
The related species, Ch. oscheihas only been recently separated from Ch. albomarginatus.Recent studies suggest that Ch. oschei is the more widespread and common species in Hungary. Its exact distribution is not sufficiently known, and it appears that the two species can hybridise with each other.

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

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

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

Chorthippus albomarginatus, pronotum and head from above
(Author: Gilles San Martin, source: flickr.com, CC BY-SA 2.0)

differences between males of Ch. dorsatus and Ch. albomarginatus
(Author: Gilles San Martin, source: flickr.com, CC BY-SA 2.0)

differences between females of Ch. dorsatus and Ch. albomarginatus
(Author: Gilles San Martin, source: flickr.com, CC BY-SA 2.0)