MORPHOLOGY
External characteristics
Male 
Forewing length (mm): 34 - 50 (Jonko, 2021). Wingspan (mm): 50 (Feltwell, 1993). 
 Hindwings The veins are suffused with green colouration (Feltwell, 1993).
Female 
Forewing length (mm): 32 - 48 (Jonko, 2021).  Wingspan (mm):50 (Feltwell, 1993). 
The forewing has more spots in females (Feltwell, 1993).  
Subspecies and variation
21 subspecies are described (Jonko, 2021). Some subspecies are yellow coloured or are a dark form (Feltwell, 1993).