Male (Hoa Binh Province, ca 500m a.s.l.)
Rhipidolestes owadai is a species I have seen on a very few occasions at Tam Dao and near Thuong Tiên Nature Reserve at Hoa Binh. But in June 2014, at the top of Mau Son mountain, I bumped into dozens of individuals during a one-day trip.
Male and female are easily identifiable by the black synthorax marked with two white-yellowish broad stripes on the sides (the upper one extending on prothorax), and by the frontal parts of the head (labrum, ante- and postclypeus) white.
Male (Tam Dao, Vinh Phuc Province, 900m a.s.l.)
Wings hyaline. Pterostigma greyish, contrasting with the wing apices darkened (male).
Caudal appendages - dorsal view
Female (Tam Dao)
Extremities of the wings of a female. Apices not darkened.
R. owadai has been described based upon specimens collected at Tam Dao.