ID needed for Arhopala

[Blue Nawab]

Dear Dr Seow, what's the ID for this Arhopala taken in Langkawi? Thanks!
https://c1.staticflickr.com/1/642/31503291955_3c6dcb20a8_b_d.jpg

[Psyche]

Male Arhopala major.
In general HW postdiscal spot 1b which is V-shaped has the upper arm shorter.
Singapore.
http://3.bp.blogspot.com/-xkuMajucBnY/T8GYExxUwtI/AAAAAAAAF_0/M4yFpUeNmzA/s1600/DSC0591-Arhopala++major+(male).jpg

A. amphimuta has the HW spot 1b with equal arms. (Upperside all blue HW confirmed the ID here.)Singapore.
http://4.bp.blogspot.com/-J9Xmngyim6A/UZiTd2FbmPI/AAAAAAAAKLU/giYImR17uDw/s1600/HFH+4500+Arhopala+amphimuta+amphimuta.jpg

In Langakawi two other species of the amphinuta group are very similar.
THe HW has a more prominent white spot at the tornal cilia, but this is often obscured.

A. norda ronda. HW spot 1b narrow V. Thailand.
https://www.flickr.com/photos/angiud/8267076824/
A. moolaiana. HW spot 1b a fat V. Langkawi.
http://www.samuibutterflies.com/02_images/travels/lycaenidae/arhopalamoolaiana.v.jpg


TL Seow: Cheers.

[Blue Nawab]

Dear Dr Seow, Arhopala Major Major is yet to be listed in Langkawi Butterfly List (Dr Kirton), could it be Arhopala amphimuta milleriana instead? Thanks!

[Psyche]

Dear Dr Seow, Arhopala Major Major is yet to be listed in Langkawi Butterfly List (Dr Kirton), could it be Arhopala amphimuta milleriana instead? Thanks!

Yes it should be A. amph.imuta.
The two can be very similar as discussed in the past.
Confirmed A. amphimuta.
https://species.wikimedia.org/wiki/Arhopala_amphimuta#/media/File:ArhopalaAmphimutaMillerianaMUpUnAC1.jpg
http://1.bp.blogspot.com/-yG1leEZCs5o/TjPzkyawWqI/AAAAAAAALUw/coU-B_sVRTA/s1600/A_amphimuta_Mark_01.jpg
Below same individual.
http://2.bp.blogspot.com/_yzw2AzY2du4/St5ZULgd9rI/AAAAAAAADk8/cnD6weB0mEs/s1600-h/Arhopala+-+Jason.jpg
http://3.bp.blogspot.com/_yzw2AzY2du4/St5ZUUyxbMI/AAAAAAAADlE/R9bkuGEdqaM/s1600-h/Arhopala+-+TanCP.jpg

Confirmed A. major.
http://3.bp.blogspot.com/-xkuMajucBnY/T8GYExxUwtI/AAAAAAAAF_0/M4yFpUeNmzA/s1600/DSC0591-Arhopala++major+(male).jpg
http://3.bp.blogspot.com/-adki2BwuGB8/UI4ojBP68rI/AAAAAAAAPh4/8q2v0-9LU-k/s1600/Amajor_adult_Ellen_01.jpg
More typical A. major where the upper arm of the V spot is very short.
http://www.butterflycircle.com/checklist/mugshots/Arhopala%20major%20major/Arhopala%20major%20major%20-%20federick%20ho.jpg

TL Seow: Cheers.
PS. A useful feature is that in A. major The HW postdiscal band from vein 2 to vein 6 (after the V spot) is always strongly dislocated in the middle at vein 4.
In A. amphimuta it is usually more or less in line, but occassionally broken as in A. major as shown by the male from Krabi Thailand.

[Blue Nawab]

Thanks Dr Seow!
Is this Arhopala ariana from Langkawi?
https://c1.staticflickr.com/1/558/31400229432_623b7b4827_b_d.jpg

[Psyche]

Post 5.

Arhopala lurida. HW postdiscal spots 5, 6, & 7 staggered ie ech is set in farther from the one before it.
https://species.wikimedia.org/wiki/Arhopala_lurida#/media/File:ArhopalaLuridaMUpUnAC1.jpg
http://4.bp.blogspot.com/-RsKPooOdJpw/Ur7VFXrh4kI/AAAAAAAANKA/3nXI5xyZz3M/s1600/HFH_0280+Arhopala+lurida+(TBC).jpg

A. atosia is very similar but spots poorly contrasted, HW spot 4 & 5 usually well separated.
https://species.wikimedia.org/wiki/Arhopala_atosia#/media/File:ArhopalaAtosiaAtosiaMFUpUnAC1.jpg
http://4.bp.blogspot.com/-HeaqxUa0Tzk/VSM7cSq2OnI/AAAAAAAAUyk/Svg2H7kDUUE/s1600/DSC_0138.JPG

A. ariana have HW spot 7 directly on top of spot 6; FW with costal spots 10 & 11.
http://www.samuibutterflies.com/insects/butterflies/lycaenidae/arhopalaariana/

TL Seow :Cheers.