Scientific name: Zyxomma petiolatum

Habitat: Pond with canopy cover

Body Length:50-52 mm

Distribution in Hong Kong: Widespread, e.g. Hong Kong Wetland Park, Tai Po Kau, Mai Po, Sham Chung

Flight period in Hong Kong: April to December

Identification features: 

1. Eyes green

2. Synthorax and abdomen dark brown

3. The 1st to 3rd abdominal segment swollen

4. The 4th to 7th abdominal segment thin