Explanation:

• The Himalayan butterfly named Golden Birdwing (Troides aeacus) is India’s largest butterfly. The female was recorded from Didihat in Uttarakhand, the male was from the Wankhar Butterfly Museum in Shillong, Meghalaya. 
• With Golden Birdwing’s wingspan of 194 mm, the female of the species is marginally larger than the Southern Birdwing (190 mm) that Brigadier William Harry Evans, a British military officer had recorded in 1932. But the male Golden Birdwing (Troides aeacus) is much smaller at 106 mm.
• Troides aeacus is listed as least concern species under the IUCN Red List. Birdwing butterflies of Troides genus are listed in Appendix II of CITES. Hence all statements are correct.