To my big surprise I ran into it again in Xuan Son on May 30, and not just one or two, but at least 10-15 individuals, all taking refuge from the heavy sun along the karst cliffs in the forest along the main stream. Not only several males and females, but also several copula were chilling there. It is not a difficult to recognize species, with the characteristic appendages of the male and the ringed abdomen. Strange to find it in such numbers in a place extensively surveyed last year.
|Male Heliogomphus retroflexus. Apologies for the bad angle. They all tended to sit higher up.|
|This female was more obliging|
|Not to speak of this very kind copula.|
|This is the male in hand. Note the bulging lamina.|
|The appendages in dorsal view|
|The female, similarly ringed and with a golden wash to the wing bases. Note also the curvy hind femora.|
|The original teneral male from Ha Tinh. The ringed abdomen is already apparent.|