Species Name: Ictinogomphus decoratus
This large dragonfly is perhaps the most commonly seen member of the family Gomphidae in its range which spreads from China, Indochina, Thailand and Peninsular Malaysia, to Indonesia, Borneo and the Philippines.
It breeds in open standing water like ponds and dams, the males are often seen perched on emergent water plants or on the water edge. Females are sometimes seen depositing their eggs in the pond, I have seen one doing so by simply dropping her eggs into the water seemingly at random and barely wetting her abdomen, with the male guarding her from a distance.
Gomphids are commonly called Clubtail Dragonflies, so this species with its yellow stripes would probably be called a Tiger Clubtail!