Nemobius sylvestris - Wood-cricket
(Bosc, 1792)

Description: Fairly small, inconspicuous cricket species (♂ 7-10 mm, ♀ 9-11 mm). Body brownish-black, with a bright Y-shaped pattern on the forehead. Ovipositor is 5-7 mm long and straight.
Similar species: Pteronemobius heydenii
Adults: from July to September
A series of high-pitched chirps of variable length (0.2-2 sec.), which follow each other very rapidly. Resembles the sound of a creaking door or morse code, but higher. It sings in the afternoon and evening, its sound can be heard only a few metres away.

Source: Orthoptera Species File (lab recording, 27 °C)
Habitat:  Forests and forest edges where it lives among leaf litter.
Very scarce in Hungary, only a few observations in the most western part of the country.

Nemobius sylvestris, male
(Author: Vlad Proklov, source:, CC BY NC 2.0)

Nemobius sylvestris, female
(Author: Gilles San Martin, source:, CC BY-SA 2.0)