交配中的秈弄蝶 Formosan Swift(Borbo cinnara)

Reference :
http://www.wetlandpark.gov.hk/tc/biodiversity/animals_butterflies.asp?x=2
https://www.afcd.gov.hk/english/conservation/hkbiodiversity/database/popup_record.php?id=2754&lang=tc
鳳園生態系列 - 香港觀蝶入門手冊 Fung Yuen Biodversity Series - Hong Kong Butterfly Watching Guide Book 2013 Jul 3rd Edition - p.45