Lestes praemorsus decipiens is a member of the Lestidae family. A common name for this species is Crenulated Spreadwing.
This species is uncommon and can be found at large water bodies such as reservoirs and large ponds and wetland marshes. In Singapore, I have seen this species at MacRitchie Reservoir and Bukit Timah Nature Reserves.
The male has powdery light blue thorax with dark spots. The abdomen is dark and shaped like a hockey stick. Aged males are heavily pruinosed.
They typically rest with their wings at an angle away from their bodies and half open. They usually perch on vertical stems of water plants with their abdomen hanging downwards.
Scientific Name: Agriocnemis nana
Common Name: Dwarf Wisp
This tiny damselfly is the smallest damselfly in Singapore. It is found in grass marshes in open forests, small streams and vegetation around edges of the central catchment reservoirs. It is very rare and localised in Singapore. The only places where I have found this species is at the water edges of the MacRitchie reservoir.
The male has a blue thorax with black strips and blue abdomen. The labrum is blue and the pterostigma is bluish-white.
The female is more colourful with green-yellowish thorax and blue abdomen. The pterostigma is pale brown.
I have only seen this species on just two to three occasions at the MacRitchie reservoir. Hope this species still survives as I have not seen it for quite a long time.
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.