Flying female in London, the UK. Picture by Stuart Cole. Male stag beetle starting to fly in Russia. Picture by Stanislav Shinkarenko. Male stag beetle in Russia. Picture by Stanislav Shinkarenko. Two males fighting in Russia. Picture by Stanislav Shinkarenko. Male stag beetle on a tree in Russia. Picture by Stanislav Shinkarenko. Flying male stag beetle in Russia. Picture by Stanislav Shinkarenko. Female stag beetle in Russia. Picture by Stanislav Shinkarenko. Couple stag beetles mating in Russia. Picture by Stanislav Shinkarenko. Male stag beetle in Achkarren, Germany. Picture by Roland Vogt. Male stag beetle in Achkarren, Germany. Picture by Roland Vogt. Male stag beetles fighting in Italy. Picture by Pietro Monteleone. Male stag beetles fighting in Italy. Picture by Pietro Monteleone. Larva of stag beetle in Italy. Picture by Gabriele Motta. Female pupa of a stag beetle in Italy. Picture by Gabriele Motta. Male pupa of a stag beetle in Italy. Picture by Gabriele Motta. Female stag beetle in Italy. Picture by Gabriele Motta. Male stag beetle on a tree in Italy. Picture by Gabriele Motta. Male stag beetle on a tree in Italy. Picture by Gabriele Motta. Male stag beetle on a tree in Italy. Picture by Filippo Bortolon. Male stag beetle on a tree in Italy. Picture by Filippo Bortolon. Male stag beetle on a tree in Italy. Picture by Filippo Bortolon. Male stag beetle on a tree in Italy. Picture by Filippo Bortolon. Male stag beetle on a human finger in Aubagne, France. Picture by Christian Dutto. Male stag beetle in the Netherlands. Picture taken by Lars Soerink, Vildaphoto. Male stag beetle in Roemenia. Picture taken by Rollin Verlinde, Vildaphoto. Male stag beetle in Roemenia. Picture taken by Rollin Verlinde, Vildaphoto. Female stag beetle in La Brenne, France. Picture taken by Jeroen Mentens, Vildaphoto. Male stag beetle in Belgium. Picture taken by Jeroen Mentens, Vildaphoto. Fighting male stag beetle in the Netherlands. Picture taken by Lars Soerink, Vildaphoto. Male stag beetle in Hungary. Picture taken by Yves Adams, Vildaphoto. Artificial log pile in the UK. Picture taken by Rollin Verlinde, Vildaphoto. Male stag beetle in Italy. Picture by Nicola Destefano. Male stag beetles in Italy. Picture by Nicola Destefano. Male stag beetle in Italy. Picture by Nicola Destefano. Male stag beetle in Italy. Picture by Nicola Destefano. Male stag beetle in Italy. Picture by Nicola Destefano. Couple stag beetles mating in Italy. Picture by Nicola Destefano. Couple stag beetles in Italy. Picture by Nicola Destefano. Male stag beetle in Italy. Picture by Nicola Destefano. Male stag beetle in Italy. Picture by Nicola Destefano. Male stag beetle in Italy. Picture by Nicola Destefano. Male stag beetle in Italy. Picture by Nicola Destefano. Male stag beetle in Italy. Picture by Nicola Destefano. Male stag beetle in Italy. Picture by Nicola Destefano. Male stag beetle in Italy. Picture by Nicola Destefano. Male stag beetle in Italy. Picture by Nicola Destefano. Male stag beetles in Italy. Picture by Nicola Destefano. Male stag beetle in Portugal. Picture by António Gonçalves. Male stag beetle in Russia. Picture by Evgeny Melnikov. Male stag beetle in Russia. Picture by Evgeny Melnikov. Two males fighting in Russia. Picture by Evgeny Melnikov. Two males fighting in Russia. Picture by Evgeny Melnikov. Two males fighting in Russia. Picture by Evgeny Melnikov. Two males fighting in Russia. Picture by Evgeny Melnikov. Two males fighting in Russia. Picture by Evgeny Melnikov. Two males fighting in Russia. Picture by Evgeny Melnikov.