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

11 June 2026

Tholymis tillarga

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

 

07 June 2026

Diplacodes trivialis

Diplacodes trivialis - female
obelisk posture
two mites are attached to the underneath of the thorax
Kajang 2, Kajang, Selangor

05 April 2026

04 April 2026

16 January 2026

Larval Emergence - Tholymis tillarga

Larval emergence of Tholymis tillarga normally takes place at the late evening.


larval emergence of Tholymis tillarga (female)
UKM Bangi, Selangor 

09 January 2026

Larval Emergence - Zyxomma obtusum

The larval emergence of Zyxomma obtusum normally takes place at late evening. 


Zyxomma obtusum - male
UKM Bangi, Selangor

09 November 2025

07 October 2025

Larval Emergence - Agriocnemis femina

This larval emergence of Agriocnemis femina took place in the late morning.


Agriocnemis femina - female

02 October 2025

Larval Emergence - Orthetrum chrysis

Below show the early stage of the larval emergence of Orthetrum chrysis. The emerging adult (thorax, abdomen and legs) is pinkish red in colour. The larval emergence of Orthetrum chrysis normally takes place in the night.




30 September 2025

Larval Emergence - Copera marginipes

Below are videos showing the larval emergence of Copera marginipes (male). The larval emergence took place at noon.


part 1

part 2

part 3

part 4

25 September 2025

Xiphiagrion cyanomelas

Does Odonata stand on water? The answer from AI Overview says no. However, I had an overwhelming observation on Xiphiagrion cyanomelas at Paya Maga (ca. 1650 m a.s.l.), Sarawak in 2010. I spotted many males of Xiphiagrion cyanomelas standing on water at water pools or small ponds in Paya Maga. Their legs were basically on the water, and sometime with their tail end was also touching the surface of water. When wind blew across the water pools, they drifted smoothly across the water surface.  


Xiphiagrion cyanomelas - male
Paya Maga, Sarawak


Xiphiagrion cyanomelas - male
Paya Maga, Sarawak

20 September 2025

Indothemis carnatica

Indothemis carnatica - male
transferring sperms from end tail to secondary genitalia beneath the 2nd abdominal segment
UKM Bangi, Selangor


30 August 2025

27 August 2025

Pseudagrion microcephalum - Submerged Oviposition

I spotted a tandem pair of Pseudagrion microcephalum laying eggs at a pond at late afternoon. While the female was laying eggs above the surface water (on aquatic plant) with the male still attached in tandem to it, a male Brachythemis contaminata came suddenly to grab (preying) the male Pseudagrion microcephalum. So, the Pseudagrion microcephalum male was detached from the female. However, the female was untouched by the sudden act, and remaining at the same spot continuing to perform egg-laying. After a while, the female submerged into water to continue laying eggs (see below photos). At one time, the whole body including the wings was totally under the water.