TRITHEMIS ANNULATA (PALISOT DE BEAUVOIS, 1807) AND SELYSIOTHEMIS NIGRA (VANDER LINDEN, 1825) (ODONATA: LIBELLULIDAE): NEW MEMBERS OF THE DRAGONFLY FAUNA OF SERBIA

Field investigations along the South Morava River near Niš have led to the discovery of two new dragonfly species for Serbia: Trithemis annulata (Palisot de Beauvois, 1807) and Selysiothemis nigra (Vander Linden, 1825), both belonging to the family Libellulidae. S. nigra was found in large numbers and with confirmed reproduction at several sites, indicating well-established populations. In contrast, Trithemis annulata was recorded at only two locations, with sightings limited to male individuals patrolling or resting in the typical “obelisk” posture. These findings increase the total number of dragonfly species known in Serbia to 69, enriching our understanding of the region's biodiversity and providing a foundation for further ecological and conservation research