Sunday, 7 December 2008

Camacinia gigantea

Anisoptera

Species Name: Camacinia gigantea

Family: Libellulidae

At first glance you would think that this is a huge Neurothemis because of the dark red colours on the body and wings of the male. Females are much paler in colour with fainter and less extensive markings on the wings. In size it is the largest of the Libellulid family.

Male flying across pond

This species is said to be quite widespread in the Indo-Australian tropics but are quite rarely encountered. However I’m quite lucky to have these insects breeding in a pond (which I’ve mentally named the Camacinia Pond ;)) in the plantation where I work. There are Camacinia at this pond at almost any time! Sometimes there will be several males patrolling it and perching on the side. Sometimes a female would be present and the males would be busy pursuing her and fighting with each other!

Female at rest

Found in lowland at ponds and lakes in open areas and near coast along mangroves.

Pantala flavescens

Anisoptera

Species Name: Pantala flavescens
Family: Libellulidae

Pantala flavescens is certainly the world’s most widely distributed dragonfly – found worldwide in the tropics as well as in temperate zones of North America and Europe. It’s the only odonate that Borneo shares with the United Kingdom where it is found as a rare vagrant. For this reason, and because it had even been known to land on ships far out at sea, its common name is the Globe Skimmer or Wandering Glider.

The colour of the thorax and abdomen of both sexes is orangish to light brown with clear wings, the small dark area on the tip of the hindwing is distinctive. They can be seen flying almost anywhere in open country, sometimes in great numbers, they rarely perch. They breed in standing or slow moving water, so rice paddies in the tropics are particularly suitable habitats.

Male Globe Skimmer on my finger

As these insects are almost perpetually on the wing, I have not been able to take a good photo of them in nature. I was however lucky to find one on the ground – which I picked up and photographed perched on my finger.

Sunday, 9 November 2008

Agrionoptera insignis

Anisoptera
Species Name: Agrionoptera insignis
Family: Libellulidae

Male
A small dragonfly of lowland forest swamp and sluggish streams, also found in shaded drains in plantations and disturbed areas. Its thin red (in the male, the female is more dull orange) abdomen with a swollen base would serve to identify it from several similarly coloured species. The synthorax is metallic blue with yellow markings in both sexes, duller in the female. It is usually seen perched on water side vegetation.
Female
The species is widespread in tropical Asia and Australasia with several sub-species recognised. The Bornean ssp is insignis. In Australia its common name is the Red Swampdragon.


Sunday, 12 October 2008

Acisoma panorpoides

Anisoptera
Species Name: Acisoma panorpoides
Family: Libellulidae
Male
At first glance this small species looks like Diplacodes travialis even the males and females in both species are similarly coloured blue and pale greenish yellow respectly. However look closer and you'll see that their abdomens look "pregnant", bulging at the base and thin at the tail end. This unique shape gives it the common name the Pintail.

Female
Acisoma panorpoides is a very widespread Libellulid being recorded
from South Africa and Madagascar to the Mediterranean, into
mainland Asia and Southeast Asia.

Previously thought to be absent from the northern part Borneo, I had
photographed it in Lahad Datu, Sabah as well as Tuaran, near Kota
Kinabalu where I found it to be very common near paddy fields.

Saturday, 11 October 2008

Diplacodes trivalis

Anisoptera
Species Name: Diplacodes trivalis
Family: Libellulidae
Mature Male
This small dragonfly is in my opinion the commonest species in open places and drains and other disturbed areas. They can be found far from water in the lowlands as well as higher altitudes. The males are pruinose blue with black markings, while females and immature males are pale green. Looking somewhat like mini Orthetrum sabina they usually perch on the ground or on low grass.
Female Chalky Percher
This species is commonly called the Chalky Percher or Ground Skimmer and is very widespread in tropical Asia and Australiasia.

Saturday, 4 October 2008

Orthetrum pruinosum


Anisoptera
Species Name:
 Orthetrum pruinosum
Family: Libellulidae

Dragonflies of the genus Orthetrum are mostly thick-bodied medium to large-sized red or blue coloured in males and brownish in females. The only exception is O. sabina which is greenish yellow and black-coloured in both male and female and has a very slender abdomen.   

Of the blue/red Orthetrum, perhaps the most beautifully coloured is O. pruinosum the male of which has a deep red abdomen and a powder (or pruinose) blue thorax and basal segments of the abdomen. It is common near slow flowing as well fast flowing streams hillside streams from the lowland up to 1000m above sea level.

Range of distribution: The species is wide spread in Asia, but the sub-species schneideri of Borneo and Peninsular Malaysia is the most vividly coloured in my opinion.

Saturday, 13 September 2008

Xiphiagrion cynomelas

Zygoptera
Species Name: Xiphiagrion cynomelas
Family: Coenagrionidae


This is another species of blue-coloured damselflies that are common in drains, lily ponds and stagnant bodies of water. They resemble Pseudagrion microcephalum but are smaller and both these species often share the same ponds. As with the latter species the male remained paired with the female while she lays her eggs onto water weeds and many pairs can be seen ovipositing en masse.

The male is blue on the sides of its thorax and black dorsally with two blue spots just behind the head, the abdomen is black tipped with blue. Females are similarly marked but dark olive instead of black as in the male. this dark area also lack blue spots.

Distribution: Borneo, Philippines, Indonesia.