Lascar for ID

[Commander]

Dr Seow, I've put this down earlier as P. hordonia. Shot back in 2009. Any views?

CommonLascar-KSKForums.jpg

[Psyche]

It should be the female P. sandaka.

There is a tremendous amount of confusion between the two species.
As the male genitalia are similar one wonders if anyone have done a DNA analysis.

The situation is complicated in the north where there are wsf & dsf (grey band narrower).

Basically I will stick with the forms in P. Malaysia & Singapore where there is only wsf. It is however possible for dsf & intermediates to occur here.

The typical males are not difficult to separate.

P. sandaka sandaka wsf .
FW orange submarginal band intact , continuous & generally wider the inner grey band.
Male FW postdiscal band ( consisting of a round head & a foot running along the lower margin)genrally large & long.
HW male with a white speculum which may be visible as a white line or highlight below the FW.
http://nlliew66butterflies.blogspot....a-sandaka.html
Singapore males.
https://1.bp.blogspot.com/_rzo8wjfyC...erick_02_c.jpg
https://2.bp.blogspot.com/-76dEIhRQ1...mon+Lascar.jpg

Probable females Singapore.
https://www.butterflycircle.com/chec...6_puddling.jpg
https://www.butterflycircle.com/chec...erick%20Ho.jpg


P. hordonia hordonia wsf.
FW inner grey submarginal band broad & wider than the orange band to the outside, in dsf the grey band is narrower & may be beaded.
FW postdiscal band with a smaller & shorter foot slanting inwards.
HW with a small grey speculum.
http://nlliew66butterflies.blogspot....-hardonia.html
Taman Negara.
https://www.learnaboutbutterflies.co...nia%20001a.jpg
Singapore male.
https://www.samuibutterflies.com/02_...iadindinga.jpg
https://1.bp.blogspot.com/-oiSX3-kyP...ascar-KSK4.jpg
Female, Thailand (with orange band obscure. )
https://i.pinimg.com/originals/0a/f2...fd389661b5.jpg
Female, Java.
https://3.bp.blogspot.com/-ELNd5T1m_...IMG_7404e1.JPG

Probale female Singapore but labelled as P. sandaka Note wide grey band.
https://singapore.biodiversity.onlin...0472?imageId=0


If Fleming's collection is accessible in the Museum , you could take a look at the females of both species.


TL Seow; Cheers.

[Commander]

Thanks Dr Seow! Will go take photos of the Fleming Coll, when I have a chance to, and then do some more comparisons. Indeed these two species are so alike as to have been missed or mis-identified.