Roesel's bush-cricket

It has also been suggested that a very localised hostile environment may also produce a higher level of macropterous forms.

[4] The macropterous form is a dispersal phase,[4] and it provides the advantage of reaching new, more favourable habitats, within which there is a lower density of Roesel's bush-crickets residing.

In the summer and autumn, the sword-like ovipositor of the female adult is used to cut open plant stems (usually grasses) and lay the egg pods within.

[11] Roesel's bush-crickets have a preference for ungrazed meadows, with tall grass swards, which are a component of its diet.

[4] Due to its affinity for tall grasses, they can be found in a variety of habitats, including long swards at the edges of roads, field borders and pastures.

[8] Roesel's bush-cricket is commonly found throughout southern and central Europe, as well as further North, in Finland, Latvia and Sweden.

[12] It used to be found uniquely on the inland side of saltmarshes, and in coastal regions around estuaries, on the North Sea coast.

[2] Over the past 50 years it has ranged further to the west, and large numbers have settled in areas of urban wasteland, especially near railways.

It has been forecasted that Roesel's bush-cricket will disperse even further across eastern Canada and the United States, more likely limited to areas where grasslands are left relatively untouched across the year so as to allow the eggs to hatch.

[2] During the day, the male bush cricket moves to locations within the flora that lie in the sun, in an attempt to achieve the peak temperature for stridulation.

Close-Up of a Roeseliana roeseli
Female
Macropterous form