Species Name: Libellago hyalina
This is the other Libellago sp. which I was able to photograph with my Nokia mobile phone in the Binusan Forest Reserve in Nunukan, Kalimantan Timur, Indonesia during my short visit there last week. Dr Rory Dow said my photos "almost certainly" showed Libellago hyalina.
L. hyalina has a wider range than the sp. in my previous post, being found from parts of China, Thailand, down to Peninsular Malaysia, Borneo and other parts of Indonesia.
My photos show the mature male which has a dark blue/purple abdomen (apparent only when seen in bright sunlight). Immature males have red markings on the abdomen, while the females like those of other spp. in this genus are rather darb in colour.