5. is most likely Female Cyana catorhoda.

The salient points in the ID of this species are:
1. The two main bands are perpendicular to the long axis of the FW.
2. The bands are not branched , angled ,wavy or marked with black.
3. Both bands are curved in at the costa (leading margin).
4. Outer margin (termen) with a band.
5. Thorax with a straight band.
6. 3 discal spots are all black.
7. Legs banded dark , not with orange.

In looking thru funet I was thrown off-course by the extra black markings in the image of the male depicted.
ftp://ftp.funet.fi/index/Tree_of_lif...ana/index.html
However Thaibugs have shown the female without this extra black.
http://www.thaibugs.com/wp-content/g...a%20(male).jpg
http://www.thaibugs.com/wp-content/g...0catorhoda.jpg

In the female there is an extra orange band just behind head.
The thoracic band appeared to make a sharp angle with the basal FW band, but this depends on how much the FWs are folded in.

The width of the main bands & the colour varies.
In fact the old British image depict this species as yellowish orange.

If all the species are as recorded in Funet it has to be this species.

TL Seow