Regal Pond Cruiser

1. Broad antehumeral stripes on synthorax

2. Apparent small yellow transverse stripes on the dorsum of the 8th abdominal segment in some individuals

 

Angle-winged Cruiser

1. Synthorax without antehumeral stripe

2. The 8th abdominal segment all black

 

South China Cruiser

1. Antehumeral stripes on synthorax, but thinner than those of Regal Pond Cruiser

2. Dorsum of the 8th abdominal segment without yellow spot

 

Club-tailed Cruiser

1. Antehumeral stripes on synthorax, but thinner than those of Regal Pond Cruiser

2. Two yellow spots on the dorsum and abdomen of the 8th abdominal segment respectively