[4] The males do not have any red coloring on the abdomen and possess a noticeably long ovipositor, characteristics that help distinguish it from the similar species O. rufipes and O. haemorrhoidalis.

[2] Omocestus viridulus typically lives in moderately wet regions around Europe except north of the Arctic Circle, and it is distributed widely over Britain.

[6] The life cycle begins with the females laying their clutch of eggs in the top layer of soil or near the root of the grass stalks.

[2] Songs are produced by a process called stridulation in which the hind leg and wing are rubbed together.

In the courtship process, the frequency of these tibial flicks does not follow a regular pattern and is highly variable between 5 and 15 ticks repeated roughly every 1 to 2 seconds.

In Spain, where this grasshopper exists as the subspecies O. viridulus kaesteneri, the song tends to be shorter than in other regions.

When singing to a female, one of the hind legs is moved at a much wider angle than the other and this generates most of the sound.

Heinrich et al. demonstrated that singing in both males and females can be induced with the injection of acetylcholine.