Based on photos on the internet, this appears to be a Saber Grasshopper. However, I am very curious about what kind of saber grasshopper. Most I can find either have multiple colors, this one is almost completely green, have a longer back body or are not found in the Netherlands (insect spotted in the Netherlands).
Answer
This is the scrub grasshopper (scientific name is Leptophyes punctatissima). More information can be found via the attached link.
Answered by
prof. dr. Dominique Adriaens
evolutionary morphology vertebrates ichthyology (fish biology) anatomy histology morphometry evolution
http://www.ugent.be
.