Dear Mansour, I would not trust your identification. Its very hard to identify from only one picture like this. You need to take photos in other angels too. Then we can forward to the very few specialists in this field. Im working in Turkey with similar fauna like yours and know how hard it can be.
P. lugubris seems to be correct, The other I do not know, There are many similar species. Without examining the authentic material it is difficult. Consult Cetoniide in Fauna SSSR. it also covers your area. It is a good key.
Sorry to say but identification cant be made from these photos. The first species can be several other species from this region including Potosia cuprea, so if its science we are working with, please stop guessing.
Perhaps one should offer more specific photos; however, I for one value any inquiry, or "guess" as opposed to the arrogant answer above. I ignore anyone who tells me about "science".
Dear Mansour, Sorry if I was a bit unpolite. Im keen to see correct identifications in scientiffic articles and thats why I dont Think its a good idea to ask for identification on this forum. Its up to you of course. I suggest that you contact one of the specialist in this group and ask for help. Pierre Hubert Tauzin in France can be a good try: [email protected] . If not, come back and I will find another solution. Good luck!