直紋稻弄蝶 Common Straight Swift (Parnara guttata)

Reference :
http://www.afcd.gov.hk/english/conservation/hkbiodiversity/database/popup_record.asp?id=2767&lang=en
郊野情報 蝴蝶篇 Hong Kong Butterflies 3rd Edition - Phillip Yik-fui Lo 羅益奎 / 許永亮 - P.157