Scientific name: Idionyx victor

Habitat: woodland stream and pool

Body length: 42-43 mm

Distribution in Hong Kong: Scattered over Hong Kong, e.g. Hok Tau, Wu Kau Tang, Sham Tseng

Flight period in Hong Kong: April to September

Similar species: South China Shadow-emerald (Comparison)

Identification features: 

1. Tibia yellow or yellowish brown

2. Apparent amber spot in wing base in female

3. “丄”-shaped spot on the 2nd abdominal segment