Pseudagrion spencei, new to Vietnam (but likely common)

Some research into the literature on Pseudagrion lead me to Fraser 1933 and his treatment of the Odonate Fauna of British India, after some pictures from southern China already pointed me to widespread P. spencei, known from Bangladesh, Pakistan, India, Nepal, Southern China and Hong Kong. Not from Vietnam, but we can change that now. For my species is a perfect match with the description from Fraser. So, I have changed the captions to the earlier entries on this species and added a post script.