Description: Slender bush-cricket (12-18 mm). Ground colour is green, head is elongated. A brown stripe runs along the top of the head and pronotum. The light brown wings are longer than the abdomen. The ovipositor (10-17 mm long) is almost straight.
Similar species: Conocephalus dorsalis
Adults: from July to September (sometimes even in October)
Song: It sings only in fine, sunny weather. The sound is a high-pitched, steady chirping that continues for several minutes. The rhythm resembles of the sound of a starting car-engine. The frequency peak is at 30 kHz, thus an ultrasonic detector is recommended.

Source: Orthoptera Species File (field recording, low cut filter)

Habitat:  Wet meadows, alkaline grasslands, reed beds, mostly humid habitats. It requires high vegetation. Poor flying ability.
Distribution: Widespread and quite common, especially at lower altitude.