A couple more unknown species from Lake Kerkini .One is a 2cm long insect ,that looks to be some sort of cricket /hopper.The other is a type of Bush-cricket ,but which species ,it is about 4cm long .ID help much appreciated.
Since you didn't get an ID on this forum yet, let me suggest some sites/forums that could help you:
Project Noah "is a tool to explore and document wildlife and a platform to harness the power of citizen scientists everywhere". http://www.projectnoah.org/
BugGuide.Net "Identification, Images, & Information For Insects, Spiders & Their Kin For the United States & Canada" http://bugguide.net/node/view/15740
What’s That Bug? "Do you have a bug you need identified? Do you want to submit an interesting photo of a bug?" http://www.whatsthatbug.com/
iSpot "Learn more about wildlife, share your interest with a friendly community and get help identifying what you have seen". http://www.ispotnature.org/
You can contact the Amateur Entomologist's Society http://www.amentsoc.org/insects/what-bug-is-this/ or ask for help the professionals at the Royal Entomological Society