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Chalybeothemis fluviatilis Lieftinck, 1933 – A close-up shot!

Family: Libellulidae
Scientific Name: Chalybeothemis fluviatilis
Common Name: Green-eyed Percher

I was always fascinated by this species of dragonfly due to it’s shinning green eyes. It is an uncommon and localise species which are found in exposed weedy banks of streams, rivers and near the banks of reservoirs. I have seen this species at just three locations; 1) near the banks of MacRitchie Reservoir; 2) at the big pond at Kent Ridge Park; and 3) at the open pond at Bukit Timah Nature Reserve.

This male was taken at the last location. A pleasant surprise for me as this was the first time I have seen this species at the location.

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The most striking feature of this specie is the green eyes.
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It’s sun-tanning on the concrete barrier structure.
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Just one single lonely male.
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Dorsal view – A handsome species.
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Oligoaeschna amata (Fӧrster, 1903) * (A female with broken-off appendages)

Family: Aeshnidae
Scientific Name: Oligoaeschna amata (Fӧrster, 1903)
Common Name: Paddle-tail

Oligoaeschna amata is a very rare species of dragonfly which has occasionally been sighted at the Central Catchment Nature Reserve. It is thought that this species was believed to be extinct in Singapore but recent sightings has proved to be otherwise.

This species of dragonfly seems to inhabit wooded swampy forests and is crepuscular. It rests by day in the dense undergrowth and forages before dusk. Female has long racket-like appendages which often lost through breakage.

A recent trip to the CCNR has awarded me with a glimpse of the elusive female resting in the undergrowth of the secondary forest.

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The female hiding in the undergrowth.
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It’s appendages has been broken-off.
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It has apple-green eyes. The pair of wings are tinted brown extensively.
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It has a “cone-shape” abdomen which tapers from the base to the tip of the abdomen.
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View from the side. Look at the green transverse flecks on the abdomen.
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Female reproduction organs are in view.
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A rare glimpse of the ventral side.
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Lateral view. The side of the thorax is greenish with stripes.

This species is known to exist in Borneo. It appears to be absent from Peninsular Malaysia.

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Libellago lineata (Burmeister, 1839) – Golden Gem

Family: Chlorocyphidae (Jewels)
Scientific Name: Libellago lineata
Common Name: Golden Gem

Golden Gem is a very attractive damselfly and is locally rare in Singapore. The male has extensive golden-yellow markings on the thorax and abdominal segments. It has dark iridescence spot on the tip of the forewing. It also has white legs which it displays during fighting with rival males. The female is slightly bigger and more robust.

This species can be found in just two to three locations in Singapore. It has been found at a large sandy-bottom stream in the western part of Singapore and at a remote corner of the reservoir in the Central Catchment Nature Reserve. It has also been seen at a stream inside the forest of the MacRitchie Reservoir.

These are sub-adult males which has yet to develop the shade of golden colour of the adult males.

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Sub-adult male.
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Eyes are dull. The dark apical spot has yet to develop.
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Same male.

Adult males display their full glory and are always ready to fight for territories and to mate with the females.

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Adult male.
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Adult male defending it’s territories on a rock.
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He is ready to pick up a fight with other males.
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At another perch near the river edge.
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Back again!!

These are sub-adult females. They are stouter with thicker abdomen.

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Very similar to sub-adult males but larger in size.
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It has abit of golden yellow on it’s abdomen.

Fully-grown females are greenish with black markings. They often hide in the corners and away from the breeding spots. They only appear at the right time for mating.

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In the thicker vegetation.
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Another adult female.

A shot video of adult males engage in territories fight.

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Diplacodes trivialis (Rambur, 1842)

Family: Libellulidae
Scientific Name: Diplacodes trivialis
Common Name: Blue Percher

This small species of dragonfly is one of the more common dragonfly that can be found in Singapore. It frequents open marshes in disturbed areas, wastelands, and fringes of the forest reserves. This species sometimes wonder far from the water source.

I found this species to be quite common along the bicycle track near Bukit Timah Nature Reserve, at the open grassland at Chestnut Avenue, at the old Kanji Nature trail, and even at the Garden by the Bay.

The male is blue in colour and as it matures, pruinose develops, and it becomes powdery blue in colour. The abdomen segment 9 to 10 is black and the anal appendages is white. It has blue eyes.

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A lateral view of the male. This individual is heavily pruinosed.
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Eyes are blue and the whole body is powdery blue in colour.
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Last two segments of the abdomen is black and anal appendages is white as seen here.
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Same male as above.

Female has pale green yellowish markings on it’s black body. The eyes are brownish on top and yellow below. Young females are more yellowish in colour.

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An adult female with greenish yellow eyes.
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Another female in lateral view.
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Same female as above.
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This is a slightly younger female. The thorax is more yellowish.
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Dorsal view of the above female. There are brown patches at the base of the wings.
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This is a very young female.

This species often flies horizontally and very near to the ground. They are skittish and sensitive to any movements in the surrounding. Not an easy species to approach.