A fairly large dragonfly, the Amazon darner reaches between 70 and 74 millimeters in length, with hindwingmeasurements between 48 and 52 millimeters. The face of this dragonfly is green and is marked with a single dark triangle on the top of the frons. The abdomen is mostly brown, but the first and second abdominal segments match the green of the thorax. Large basal spots, ranging from blue to green depending on the individual, give the abdomen a ringedappearance.