Find the Opal Slim in the FBIS database (Freshwater Biodiversity Information System) here. Family Coenagrionidae Identification There are currently no photographs of this species in the OdonataMAP database. Aciagrion dondoense is a small, elongate, and slender damselfly with a small head. Males are bright greenish-blue on the upper thorax. The sides of the thorax are … Continue reading Opal Slim (Aciagrion dondoense)