Whilst birding the Wadi Taj area near Tanoumah in an area of permanent water I found a couple of Azure Skimmer Orthetrum theniolatum a medium sized dragonfly that frequents narrow water channels with barren steep banks, concrete water tanks and other areas of water where it patrols the water surface. Adult males develop a blue-grey bloom a few days after emergence. The bottom photo is of two dragonflies mating.
