Strange Common Bluebottle?

[DaveChiangMai]

Two images of Common Bluebottle Graphium sarpedon luctatius taken from Chiang Dao, northern Thailand.
One of these two has an additional spot in the forewing, and generally looks more colourful and the band across the wing appears wider. I can find no other images on the web showing an additional spot in the wing. An aberrant? Any comments gratefully received.
Thanks

b0525 Common Bluebottle (Graphium sarpedon luctatius) - Chiang Dao 02.JPGBluebottle, Common pl 31 - TH (Chiang Dao).JPG

[Psyche]

There are wide variations in G. sarpedon, some subspecies being elevated to full species.
However, this is not the case here.
Yutaka consider all forms in Thailand to Singapore as subspecies sarpedon.
The extra spot & wider band is seen in some forms ( or aberrations).
http://yutaka.it-n.jp/pap/10560001.html

TL Seow :CHeers
PS. An aberration appears randomly once in a while, but if it is seen consistently, it would be considered a form.

[DaveChiangMai]

Many thanks