Hymenopterans

My warmest gratitude to Dr. Alexander Fateryga for help with identification.
Xylocopa violacea male Botanical garden, Yalta, Crimea, Russia 20150916_0089
Xylocopa violacea male Botanical garden, Yalta, Crimea, Russia 20150916_0091
Xylocopa violacea male Botanical garden, Yalta, Crimea, Russia 20150916_0092