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Stethophyma grossum (Linnaeus, 1758)

Large Marsh Grasshopper

Taxonomy: Orthoptera>>Caelifera>>Acridoidea>>Acrididae>>Oedipodinae

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Stethophyma grossum Stethophyma grossum

Status: British Isles native species.

Description: Largest native grasshopper, yellowish green to olive brown in colour with bright red undersides of the hind leg thighs. A plum coloured form is sometimes observed in females. Females are larger than males.

Size: 21-36 mm

Wings: Fully winged and flies well.

Stridulation: Characteristic popping stridulation made by kicking the wings with the hind legs. 1-3 clicks per second, in verses lasting 5-10 seconds.

Recordings: Note, your ability to play these recordings depends upon the configuration of your computer and browser.

Calling song. Three verses of typical clicks, interval between verses shortened.
Source: Baudewijn Odé

Food: Herbivorous.

Habitat: Wetland species, usually in acid bogs and tussocky grass especially purple moor-grass and scrub. The eggs are laid in the base of grass tufts.

Phenology: Nymphs emerge in late spring. Adults appear from late July and survive until early November.

Distribution: The records held by the National Biodiversity Network are shown in the map below.
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