Slender groundhopper

A slender groundhopper resting on a broken reed stem. It's a stocky, brown relative of the grasshoppers, with a long pronotum that extends beyond the end of its body

Slender groundhopper © Brian Eversham

Slender groundhopper

This stocky relative of grasshoppers is found on damp ground close to water.

Scientific name

Tetrix subulata

When to see

Adults: mainly April to July

Species information

Statistics

Length: 9-14mm

Conservation status

Locally common

About

The slender groundhopper is more strongly associated with damp habitats than the more widespread common groundhopper. It can usually be found on damp, bare ground at the edges of pools, rivers and other water sources. It can be very difficult to spot, camouflaged against mud and moss, but gives itself away by leaping if disturbed. Adults are active in spring and summer, laying eggs in the soil or low vegetation. They can spend the winter either as a nymph or an adult, though wintering adults don't reach sexual maturity until the following spring.

How to identify

It looks like a stocky grasshopper, but the pronotum (the plate-like section behind the head) extends all the way along the back and past the end of its abdomen. Its wings peek out a little beyond the end of its pronotum.

It could be confused with the more widespread common groundhopper, but that species has a more obviously raised ridge along the centre of the pronotum. The common groundhopper also usually has a shorter pronotum, which doesn't extend beyond the end of the abdomen. However, there is a rare form of common groundhopper with a longer pronotum, as well as a rare form of slender groundhopper with a shorter one!

The slender groundhopper is harder to separate from the much rarer Cepero's groundhopper. The key features are the top of the head and the middle femur. When viewed from the side, the top of the head looks rounded (more angular in Ceparo's groundhopper) and the top and bottom surfaces of the femur are smooth (undulating in Ceparo's).

Distribution

Found across much of England and southern Wales, with scattered records further north. It has also been recorded in a few parts of Scotland and Northern Ireland.

Did you know?

Like the other UK groundhoppers, the slender groundhopper is a skilled swimmer. It may even dive beneath the surface to avoid predators.