In males of this red dragonfly, the hindwing is 34 to 35 mm long and the total body length ranges from 42 to 45 mm. The eyes, thorax and abdomen are red. There is a brown patch at the base of the hindwing. The wing veins near the leading edges and wing bases are red. The venation is open, helping to distinguish it from other medium-sized red dragonflies. In the male, there are two distinct black diamond-shaped spots on the dorsum of abdominal segments eight to nine.