Female Erionota torus.
Female Erionota have the antennal club half white above.
Males of E. torus & thrax have the club 3/4 white ;E. acroleuca male have the antennal club wholly white above.
E. torus: FW outer margin convex; HW discal patch relatively broad throughout.
Male & female.
http://dearlep.tw/images/Papilionoid...DSC_6698_1.jpg
http://taibnet.sinica.edu.tw/uploads...%20torus_a.jpg
E. thrax : FW outer margin straight : HW patch more or less broad throughout.
Male & female.
https://wanderingbutterflyeffect.fil...0f3c25860d.jpg
http://ataxus.com/ak5t/hawaii/j04oc15l.jpg
E. acroleuca.(research shows taxon hiraca is actually the later name & thus a junior synonym.)
FW outer margin straight; HW patch more irregular & narrowed in the upper half.
1 male & 3 female.
http://www.butterflycircle.com/check...nny%20Chir.jpg
http://2.bp.blogspot.com/-s7fKLefxl0...ed-Skipper.jpg
http://2.bp.blogspot.com/-oGOIfwCnqF..._female_01.jpg
http://ftp.funet.fi/index/Tree_of_li.../torus-2fv.jpg
TL Seow: Cheers.