date of ants nuptial flights Europe

                * Messor spp. : april to June and september to november

                 * Campotonus spp. : april to september

                 * Tetramorium caespitum : may to august

                 *Lasius niger : July to september

                  *Formica spp. : July to september

                  * Cremotogaster spp. : July to October