Barbitistes serricauda - Common Saw Bush-cricket
Fabricius, 1798

Description: Ground colour is green, but males can be very colourful (♂ 14-20mm, ♀ 16-25 mm). Pronotum saddle-shaped, head is slightly narrower than pronotum. Male cerci and legs rusty, cerci bent and evenly thinner towards the tip. Tip of ovipositor (8-10 mm) is curved upwards.
Similar species: Barbitistes constrictus and Isophya species
Adults: from June to September
Very faint and short buzzing sounds, repeated with 2 to 3 sec. intervals. Bat detector is required.

Source: Orthoptera Species File (lab recording, bat detector, 26 °C)
Habitat:  Lives in trees and bushes.Activity peak at the evening and in the night.
Only in the western part of Hungary (west of the Danube). Scarce.

Barbitistes serricauda, male
(Author: Nagy Sándor, source: ízeltlábú, CC BY 4.0)

Barbitistes serricauda, female
(Author: Károlyi Balázs, source: ízeltlábú, CC BY 4.0)