Crimson Speckled Moth, Utetheisa pulchella?
Right genus, wrong species.
This is Utetheisa lotrix.
see http://asia.geocities.com/hkmoths/noc/arc/ute_lotr.htm for details.
cheers,
Roger.
Roger C. KENDRICK Ph.D.
C & R Wildlife, Lam Tsuen, Tai Po, N.T., Hong Kong S.A.R.
HK Moths website: http://www.hkmoths.com
HK Moths Recording Project on i-Naturalist: http://www.inaturalist.org/projects/hong-kong-moths
HK Moths Flickr site: http://www.flickr.com/groups/hongkongmoths/
Thanks