I was sitting there frustrated with them all buzzing around at high speed and could not make out what they were. With high ISO and High shutter speed of up to 1/8000s sec, I focused on the dead tree and fired away when they came into sight
They were Graphium sarpedon luctatius (Common Bluebottle )
This is the first time I see the species hill topping and doing dogfight.
The upper left was a stray carpenter bee that got into the way.
Here's a couple more shots :
Sunny
~~When the Going Gets Tough, the Tough Get Going~~