Sefton Coast Wildlife

Common Green Grasshopper

Omocestus viridulus

UK Green ListEasy to see📍 Ainsdale NNR
Season
June–October. Most common from July.
Best time of day
11am–4pm in warm weather; males sing throughout the day in sunshine
Sefton Coast
Abundant in dune grassland throughout the Sefton Coast
UK population
Common throughout upland and coastal grassland

Tap image to enlarge · Wikimedia Commons

Overview

The Common Green Grasshopper is the most numerous grasshopper of the Sefton Coast dune grassland. As the name suggests, both sexes are predominantly green, though there is variation — some individuals are more grey-brown. The male's song is a series of soft, rising 'tik' notes building to a sustained purring churr, repeated every 20–30 seconds. On warm July afternoons, the sound fills the dune grassland. They jump enormous distances relative to their size when disturbed.

At a Glance

OrderOrthoptera
FamilyAcrididae
HabitatDune grassland · Coastal heath · Rough grassland
DietGrasses and other vegetation
UK populationCommon throughout upland and coastal grassland
Sefton CoastAbundant in dune grassland throughout the Sefton Coast
ConservationUK Green List

Where to See It

Dune grassland throughout the Sefton Coast. The most abundant grasshopper.

Identification

Green (variable — can be brownish). No keel on pronotum (sides of thorax are straight, not angled). Male's song builds to a churr. Shorter wings than Meadow Grasshopper. Green underside and sides.

Viewing & Photography Tips

Walk dune grassland in July — the sound of grasshoppers is constant. Move slowly and look for the movement when they jump.

Conservation Status

UK Green List

This species has a favourable conservation status in the UK and remains an important part of Sefton Coast biodiversity.

Frequently Asked Questions

How do grasshoppers make their sound?

Grasshoppers stridulate by rubbing a row of pegs on the inner surface of the hind legs against the edge of the forewing — the leg acting like a comb on a ridged surface. Each species has a characteristic song. On warm summer days in the dune grassland, the sound of multiple species singing simultaneously creates one of the characteristic soundscapes of the Sefton Coast.

Related Species

Plan your visit to the Sefton Coast

Marshside RSPB, Formby pinewoods, Ainsdale NNR — practical guides to getting there, what to bring, and the best spots for each season.