Comparison of Similar Species

Blue-spotted Dusk-hawker vs

Ryukyu Dusk-hawker vs

Dingy Dusk Hawker

Blue-spotted Dusk-hawker

2. Dorsum of synthorax near the base of forewings with a pentagonal spot

 

Ryukyu Dusk-hawker

2. Dorsum of synthorax near the base of forewings with a obtriangular spot

 

Dingy Dusk Hawker

2. Dorsum of synthorax near the base of forewings with a rhombus-shaped spot