Black Marsh Skimmer

Scientific name: Indothemis carnatica

Habitat: marsh, pond

Body length: 33-39 mm

Distribution in Hong Kong: scattered distribution along coastal area (population stability to be confirmed)

Flight period in Hong Kong: April to November

Similar species: Indigo Dropwing (Comparison: male)

Identification features (male): 

1. Synthorax and abdomen blue

2. Two black vertical stripes on the dorsum of abdomen 

Identification features (female):

1. Synthorax and abdomen yellow, with black stripes

2. Very small amber spot on wingbase of hindwing

3. Superior anal appendage black, inferior anal appendage white