Cover photo by Gregg Darling. Find the Savanna Riverjack in the FBIS database (Freshwater Biodiversity Information System) here. Family Platycnemididae Identification Medium sized Length up to 44mm; Wingspan attains 62mm. The Savanna Riverjack is robust for a damselfly, with a distinctive shape and posture. Males are easily recognised as there are no similar looking species … Continue reading Savanna Riverjack (Mesocnemis singularis)