Cover photo by Walter Neser. Find the Graceful Slim in the FBIS database (Freshwater Biodiversity Information System) here. Family Coenagrionidae Identification Small size Length up to 39mm; Wingspan around 46mm. Aciagrion gracile has a noticeably slender and elongate build. Males have a bright green upper thorax with greenish-blue sides. The long, slender abdomen is black … Continue reading Graceful Slim (Aciagrion gracile)