Photographed adjacent to a small stream, at elevation 900m. Bandung, W. Java.
I suspect that this is a Javan sub-species, as it does not follow exactly the diagnosis offered by ‘Moths of Borneo’ (vol6). Chiefly, quote ‘There is a single, elongate yellow patch in the most posterior space of the forewing, indented posteriorly where that of the previous species is divided by a black band’.
On this specimen, the posterior band is broken by a black band. Though the body markings match E. Horsfieldi, the wing markings are more like E. elegantissima.
I have images of four specimens photographed previously, if you would like to see. One of which matches the diagnosis, the others seem to be half way between the two.