These shots were taken at Mount Ba Vi in May 2013 and 2014, along a well-shaded stream at 900m a.s.l, through dense forest.
Some "in hand" shots of the male to show close-up details of the thorax, the head and the anal appendages:
Caudal appendages black, superior one moderately bifurcate, the inferior widely opened with bifid apices. Cerci almost same lenght as epiproct, both curved in lateral view.
I also vouchered (along the same stream) the female oviposited in the shallow, slow-flowing margins.
Wings entirely smoked with apices darkened
For many years this species was known only from a single female; in 1995 Karube described both sexes from a series of 14 specimens taken on Tam Dao. Yokoi and Kano (2002) recorded a female, reared from the larva, from central Laos. It is likely to be under-collected and may be moderately common in some areas of Indochina.
C. auratus is listed as Near Threatened with the hope that it can be downlisted to Least Concern as soon as viable populations are known.