Atta cephalotes, but this weekend or the next one I will go to the museum and I can check the species. You can find some species information in the computer that is located in one corner near the main underwater viewing point of the "Bosc Inundat".
Thanks a lot, I finally got the name in the lists of people who visited this museum. Happy, because I lacked photos of it - I had only A. sexdens of Munich. The panel only says "leafcutter ants", I didn't knew that of the computer. Maybe you can try to know something about the three Malawi Lake cichlids and the Flooded Forest catfish that I uploaded recently in the "To be identified" gallery?
