How does one differentiate between M. ancon and M. archilochus?

This question has been complicated by the history of the taxonomy of the taxon siamensis. Its relationship to M. ancon and M. archilochus has had a checkered history, and has been variously considered and/or misplaced within both species.

My current understanding (taken from Yutaka's website and Ek-Amnuay, Butterflies of Thailand) is that in Thailand there are three taxa.

Miletus ancon ancon
Miletus ancon siamesis
Miletus archilochus


Looking at my images from northern Thailand, I feel I may have made an error resulting from the confusion above and the actual identification of archilochus.

I made a couple of postings last year which are now confusing or incorrect.

In the first posting here:
http://www.butterflycircle.com/showt...ht=archilochus
images of M. ancon were confirmed, but not which taxa were involved - ancon or siamensis?

A subsequent follow-up posting here:
http://www.butterflycircle.com/showt...ht=archilochus
labeled a series of images as Miletus archilochus siamensis, which is now clearly confusing and taxonomically incorrect.

I reproduce the relevant images below, and would like to ask which taxa they relate to, and especially how to differentiate M. archilochus and M. ancon from each other.

All images taken in n. Thailand.

Image 1 and 2. Same individual. I assume still correct as M. ancon, but M. a. ancon or M. a. siamensis.?
Image 3 and 4. Same individual. No longer sure which taxon this is.
Image 5, 6 and 7. Different individuals but all from same location at same time, so look to be the same species.
Image 8. Previously unposted image from Omkoi, nw Thailand. I assume M. ancon, but which taxa?

With many thanks for clarifications.

Image 1
b4145 Divided Brownie (Miletus ancon siamensis) - Wiang Kosai 01.JPG

Image 2.
b4145 Divided Brownie (Miletus ancon siamensis) - Wiang Kosai 02.JPG

Image 3.
b4145 Divided Brownie (Miletus ancon siamensis) - DLU Chompa Thong Falls 03.JPG

Image 4.
b4145 Divided Brownie (Miletus ancon siamensis) - DLU Chompa Thong Falls 04.JPG

Image 5.
b4145 Divided Brownie (Miletus ancon siamensis) - DPN Huai Ton Pueng Falls 02.JPG

Image 6.
b4145 Divided Brownie (Miletus ancon siamensis) - DPN Huai Ton Pueng Falls 03.JPG

Image 7.
b4145 Divided Brownie (Miletus ancon siamensis) - DPN Huai Ton Pueng Falls 04.JPG

Image 8.
b4145 Divided Brownie (Miletus ancon siamensis) - Omkoi 01.JPG