Showing posts with label Behaviour. Show all posts
Showing posts with label Behaviour. Show all posts

07 October 2026

Mating Between Two Species: Diplocodes trivialis-Diplacodes nebulosa

Mating Between Two Species: Diplocodes trivialis-Diplacodes nebulosa


I spotted a tandem pair between two Diplacodes species - Diplacodes trivialis (male) and Diplacodes nebulosa. Diplacodes trvialis (hw = 23 mm) is normal much larger than Diplacodes nebulosa (hw = 19 mm). However, the population of Diplacodes trvialis at a site in Kajang 2 is much smaller in size (hw = 17-19 mm). The below photo shows a small-sized male (blue colour) Diplacodes trivialis in tandem with a female Diplacodes nebulosa. 


Diplacodes trivialis (male; blue)-Diplacodes nebulosa (female; yellow)
Kajang 2, Kajang, Selangor

04 October 2026

Semenyih - Chalybeothemis chini

Chalybeothemis chini - male
obelisk posture
Central Park Eco Forest, Semenyih, Selangor

01 October 2026

Semenyih - Brachythemis contaminata

Brachythemis contaminata - male
obelisk posture
infested by midges
Central Park Eco Forest, Semenyih, Selangor

28 September 2026

Semenyih - Brachydiplax chalybea

Brachydiplax chalybea - male
obelisk posture
a midge is clinging at its underneath thorax
Eco Forest Sales Gallery, Semenyih, Selangor

26 September 2026

Territorial Dispute - Brachythemis contaminata

Brachythemis contaminata - both are males
territorial dispute between two males
Central Park Eco Forest, Semenyih, Selangor

18 September 2026

Kajang - Ischnura senegalensis

Ischnura senegalensis - A Male Attacking A Wheel Pair

I managed to capture with camera the moment of a male attacking a wheel pair (all are Ischnura senegalensis). The wheel pair was perching on a grass blade at the water edge of a pond. Suddenly, the male from nearby attacked the wheel pair (on the male individual of the wheel pair). The wheel pair together with the male fell down to the water surface (the moment captured by the photo below). Within a short moment of struggling, the male retreated from the attack, and the wheel pair managed to reposition themselves lifting from the water surface.


Ischnura senegalensis
a wheel pair is being attacked by a male
Central Park Tropicana Heights, Kajang, Selangor

14 September 2026

13 September 2026

Semenyih - Chalybeothemis chini

Chalybeothemis chini - male
obelisk posture
Central Park Eco Forest, Semenyih, Selangor

05 September 2026

Chalybeothemis chini Trapped by Spider Net

Chalybeothemis chini Trapped by Spider Net

A female of Chalybeothemis chini is trapped by spider net at the aquatic pandanus plant. Female of Chalybeothemis chini has not been described yet. It looks like the markings on the thorax and abdomen of the female of Chalybeothemis chini resemble that of the male. 


Chalybeothemis chini - female
Central Park Eco Forest, Semenyih, Selangor

20 August 2026

Egg Laying of Tramea transmarina

Egg Laying of Tramea transmarina

Tramea transmarina is a pond species. The egg-laying is normally performed in the mid day. During the process of egg laying, the male clasps on the female forming a tandem pair. The flying tandem pair will look for suitable sites at the pond for egg laying. The male will unclasps the female briefly letting her to release eggs on the surface of water. Then, immediately the male will clasp the female forming again a tandem pair. The tandem pair will keep on flying to look for other suitable sites at the pond to lay eggs. Sometime, the female may lay eggs alone without the presence of the male.


a pair of Tramea transmarina flying in tandem during the process of egg laying
Kajang 2, Kajang, Selangor


the male briefly unclasps the female so that the female may conveniently releases eggs on the water surface
Kajang 2, Kajang, Selangor


a female Tramea transmarina is laying eggs alone without the presence of male
Kajang 2, Kajang, Selangor

24 July 2026

Odonata Feeding on Odonata

 
Orthetrum sabina (male) is feeding on Neurothemis fluctuans (male)
Canal Park, Setia Alamsari, Kajang, Selangor

14 July 2026

Parasitic Fly on Odonata

These parasitic flies (midges) cling firmly on the thorax of odonate with their mouth hook. 


midges on the thorax of Pseudagrion siamense

Eco Forest - Tramea transmarina

Tramea transmarina - male
on flight
Eco Forest, Semenyih, Selangor

13 July 2026

01 July 2026

28 June 2026

Eco Forest - Brachydiplax chalybea

Brachydiplax chalybea - males
territorial fighting between two males
Eco Forest, Semenyih, Selangor

11 June 2026

Tholymis tillarga

Tholymis tillarga - male
Kajang 2, Kajang, Selangor
drowned in a pond.......