Scientific name: Leptogomphus hongkongensis

Habitat: woodland stream

Body length: 63-65 mm

Distribution in Hong Kong: Scattered over Hong Kong, e.g. Hok Tau, Sunset Peak, Tei Tong Tsai, Mau Ping, Wong Nai Chung Gap

Flight period in Hong Kong: April to August

Identification features: 

1. Mesepisternum with “TT”-shaped yellow spot

2. Three complete yellow stripes at two sides of synthorax respectively

3. Thin vertical stripe from the 2nd to 7th abdominal segment

4. Superior anal appendages white and flat in male

5. Length of paired inferior and superior anal appendages similar in male