Bastilla acuta

http://www.mothsofborneo.com/part-15-16/ophiusini/ophiusini_8_5.php
Diagnosis vide MOB. The forewing is similar to that of maturata, though less violet in tint and with more contrast in the pale to dark zone extending basal to the medial. The subapical mark on the costa is deeper, more trapezoidal, less lens-shaped. The marginal line is more punctate at the veins.
References: Hampson Vol 2, pg 498, # 2498. Moths of Thailand, Vol 3, pg 88, # 413, pl 20/18
http://twmoth.tesri.gov.tw/peo/MothQuery.aspx?F=Erebidae&G=Bastilla&S=Bastilla%20acuta%20acuta