Help for identify Neptis sappho and Neptis hylas

[Psyche]

The Neptis are particularly difficult in the north with wsf & dsf.

There are 31 species in Vietnam , half of which are black & white.
http://butterfliesvietnam.blogspot.c...h/label/Neptis
I have been unable to locate images for N. dejeani & genulfa.

Both N. sappho & hylas have the cell bar fractured (like a broken bone)& underside with the white band edged in black.
N. hylas have the FW postdiscal spots elongate & the HW white band's lower border with a tiny triangular spot (at the base of space 3).
https://www.ifoundbutterflies.org/sp/480/Neptis-hylas
Your link below is N. hylas
https://www.ifoundbutterflies.org/sp/480/Neptis-hylas

N. sappho have the FW spots more rounded & the HW basal spot 3 often absent; Underside ground is a deeper rusty brown.
https://www.ifoundbutterflies.org/sp/925/Neptis-sappho
http://yutaka.it-n.jp/lim1/720140010.html

Your link does not match either species .The FW spots are very large & wide & the subapical spots almost fused. The colour is a bluish white.
http://vmpic.science4you.org/images/..._2400x1800.jpg

Possibly it is one of the two unknown species ie N. dejeani & genulfa.


TL Seow: Cheers.