Scientific name: Philoganga vetusta

Habitat: woodland stream

Body length: 57-73 mm

Distribution in Hong Kong: Mainly found in north New Territories, e.g. Hok Tau, Wu Kau Tang, Bride’s Pool, Sha Lo Tung, Mui Wo

Flight period in Hong Kong: March to August

Identification features: 

1. “n”-shaped yellow stripe at dorsum of synthorax