Gryllus Gryllus campestris

Gryllus campestris (Linné, 1758) (Figs. 1; 8; 15; 22) - has one of the most known songs in the animal kingdom. This calling song is composed of echemes of 3 (rarely 4-5) hemisyllables, each echeme having 0,2 seconds. The song is in crescendo from the first to the last hemisyllable. The gaps between echemes are variable between 0.1 and 0.3 second at 20-22oC. It stridulates from May to June, mostly in the evening and at night. The stridulation is very intense being heard from over 90-100 meters. The pars stridens has approximately 4.6 mm (the area with stridulatory pegs) and a number of 150 pegs. [1]

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