We have two flangetail species in Hong Kong, this is the Golden flangetail (Sinictinogomphus clavatus) . - the other is Common flangetail (Ictinogomphus pertinax) not pictured - Often perched on top of plants—especially prominent sticks or grass stems sticking out of ponds—look for the distinctive projection near the end of its abdomen. Very territorial and can be seen chasing other dragonflies away, the females are rarely seen.
SEE THEM In summer, normally over larger bodies of water, or resting on plant stems near the pond edges. Hong Kong Wetland Park is a great place to see them. FASCINATING FACTS: Common flangetail (Ictinogomphus pertinax) Both having long thin bodies and outstretched wings, the word "dragonfly" has its source in the myth that dragonflies were once dragons. Called "the Devil’s riding horse" in Old English, dragonflies were believed to be either demonic or seen as a poisonous winged snake. By contrast, in Asia, they are cultural symbols of good harvests and are good luck charms. Japan’s ancient name Akitsushmia literally means “dragonfly island".
Here are some close ups of a flangetail i found in Thailand/