This is a moderately large and rare dragonfly which inhibits slow flowing streams near swampy forest in the Central Nature Reserve of Singapore. This species can be seen flying swiftly along forest trails or hanging from high branches at MacRitchie Reservoir.
This species has brilliant bluish-green eyes. There is a conspicuous white saddle cutting across the dorsum of the thorax of both sexes. Both sexes has dark patches at the base of the wings.
From my observance, this species tend to be more active in the late morning to early afternoon. You’ll need to have good sharp eyes to locate them as they tend to hang motionlessly on twigs or high branches.