Its occurrence in Vietnam is not totally unexpected. It is distributed from the Japanese islands close to Taiwan, like Ishigakijima, from Taiwan itself and mainland China provinces like Guangdong and Guangxi, but also from Thailand. The latter fact suggested it might also occur in Laos and Vietnam. And indeed!
|Lyriothemis elegantissima, male (right) and female (left)|
|Lyriothemis elegantissima, male|
|Even foggier, Lyriothemis elegantissima, female|
|Scan of dorsal side of male (top) and female (bottom). Note the differences in color of pterostigmata.|
|Detail of hamulus|