Showing posts with label Critically Endangered. Show all posts
Showing posts with label Critically Endangered. Show all posts

Tuesday, August 24, 2010

Dragonfly (36) - Indothemis Limbata

Family : Libelluidae
Common Name : Restless Demon
Status : Critically endangered
Location : Lornie Trail

This species is listed in the Singapore Red Data Book as critically endangered.  The male is dark blue in colour with some silver markings at the last few segments of its adbomen.  The colour of the female is said to be paler and is even more rare.

(Male - Lornie Trail, 23 Aug 2010)

On 23 Aug 2010, 2 males were spotted around the reservior edges along the Lornie Trail.  They perched on some leaves in the middle of the water making it difficult to shoot.  The above image was taken with my tripod set at the slope of the reservior edge.   I had to attach my 1.4TC to get a reasonable reach to this dragonfly.  Fortunately, it stayed at this perch for a long period enabled me to take some decent shots.

(Lornie Trail - 23 Aug 2010)

I revisited Lornie Trail on 25 Aug 2010 and I am glad to obtain an improvement shot of this species.

(Lornie Trail - 25 Aug 2010)

Wednesday, December 09, 2009

Damselfly (22) - Libellago Hyalina

Family : Chlorocyphidae
Common name : Clearwing Gem
Status : Critically Endangered
Location : Upper Peirce

Libellago Hyalina is a very rare damselfly. Upper Pierce is the only place where this species has been sited. It is therefore classified as critically endangered species. According to Mr Tang Hung Bun, an expert in Singapore Odonata, the common name of this species should be Clearwing Gem instead of Hyaline Jewel which was wrongly used by some people.

Libellago Hyalina is a confusing species because it has several colour forms for both male and female. It is not clear how many colour forms they actually have. The images below are some colour forms captured so far. There could be other colour forms that we are not aware of.

(Male, steel blue form - 3 Dec 2009)

(Male, glowing purple form - 5 Dec 2009)

(Female, grey form - 5 Dec 2009)

(Younger Female, orange form - 3 Dec 2009)

(Younger female, brown form - 7 Dec 2009)