Stauroderus scalaris - Ladder Grasshopper
(Fischer-W., 1846)

Description: Medium-sized species (♂ 17-21 mm, ♀ 21-28 mm), ground colour is green or brown. The wings have a dark tip, reaching beyond the hind knee in males and a bit shorter in females. The medial field on the fore wing is very wide, with ladder-like vein pattern in males. The side keels of the pronotum are angularly broken. The hind knees are dark, the end of the femur is yellow or orange.
Similar species: Chorthippus species, especially Ch. apricarius
Adults: from June to October.
Song:
Its characteristic song starts with slow and short chirps, then changes to a long (about 15-30 seconds) scratching sound. It also produces sound when flying.

Source: Orthoptera Species File (field recording, 24 °C)

H
abitat:  Semi-arid grasslands. It prefers warm habitats.
Distribution:
Restricted to the North Hungarian Mts. Isolated population above 500 m.

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

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