Dear Tibor,
I would like to note that a phylogenetic study of the genus Emys (Spinks and Shaffer 2009) showed that there is generally no reciprocal monophyly between Emys orbicularis and E. trinacris based on nuclear genes, providing substantiation for the proposed rejection of the latter taxon at the species level (e.g. Speybroeck and Crochet 2007).
However, if you can wait until May 5th, there's a very good chance that I will have a picture of the disputed taxon, once I'll get back from Sicily. If not, it shouldn't be too hard to find the e-mail addresses of some of the photographers of the multiple pictures that can be found already on the web.
g's,
J. | 
