1 to 5 are right.

18 Dindica olivacea is right. FW postmedial( dark line) meet the costa at a sharper angle.
https://www.inaturalist.org/observations/7277095
http://www.mothsofborneo.com/part-9/...trini_12_3.php

D. polyphaenaria. : FW postmedial meet costa at a less acute angle.
http://twmoth.tesri.gov.tw/images/tw...moth077345.jpg
http://www.mothsofborneo.com/part-9/...trini_12_2.php

TL Seow: Cheers.