ID assistance with southern Thai Arhopalas

[DaveChiangMai]

Here are a couple of southern Thailand Arhopala species giving me a headache.
Suggestions for ID appreciated please
Both were photographed in Bang Lang NP right on the Malaysia border in lowland primary forest.

Image 1. This is a tailed species. The closest match I can find is A. elopura. Though the spots appear to be a little too large?

Image 2. An untailed species. I am stuck on this one.

Many thanks.

Image 1.
27694

Image 2.
27695

[Psyche]

1. Arhopala horsfieldi

The FW postdiscal band resembles A. elopura with spot 4 dislocated & shifted outwards.
However the HW postdiscal band is only partially dislocated at vein 2 (where the 'V' spot is).
In A. elopura this is fully dislocated.
A. elopura.
https://en.wikipedia.org/wiki/Arhopala_elopura#/media/File:ArhopalaElopuraElopuraMUpUnAC1.jpg


# species in the group can look similar.

A. hellenore have sharper FWs & contrasted markings.
https://en.wikipedia.org/wiki/Arhopala_hellenore#/media/File:ArhopalaHellenoreHellenoreMUpUnAC1.jpg


The next two are very similar.


A, eumolphus . spots may be more sinuous.
The HW green patch features a double layered tapering band.
http://www.butterflycircle.com/checklist/mugshots/Arhopala%20eumolphus%20maxwelli/177-1-Arhopala-eumolphus-maxwelli-(Green-Oakblue)--Sunny-Chir.jpg
http://www.butterflycircle.com/checklist/mugshots/Arhopala%20eumolphus%20maxwelli/2007_10_02_IMG_1373.jpg


A. horsfieldi HW green patch with the upper paler layer less defined ,the patch is strongly constricted at vein 2.
https://thaibutterflies.com/wp-content/uploads/2016/07/Arhopala-horsfieldi-eurysthenes-female.jpg
https://thaibutterflies.com/wp-content/uploads/2016/07/Arhopala-horsfieldi-eurysthenes-male.jpg
https://thaibutterflies.com/Butterflies/arhopala-horsfieldi/

[Psyche]

2. Arhopala amphimuta amphimuta.


Four species are very similar tailless species.
FW with psotdiscal band partially dislocated at vein 4.
HW postdiscal spots 5, 6, & 7 staggered, spot 6 not astride the cellend bar.


They can be divided into two groups.



A.HW with a white tornal spot on the cilia.

A1. Arhopala norda .HW marking narrower, the 'V' spot narrow.
https://thaibutterflies.com/wp-content/uploads/2016/07/Arhopala-norda.jpg


A2. Arhopala moolaiana. HW with the 'V' spot very fat.
https://thaibutterflies.com/wp-content/uploads/2016/07/Arhopala-moolaiana.jpg




B. HW without a white tornal cilial dot.


B1. Arhopala amphimuta; HW with wellform 'V' spot of equal arms; postdiscal band above it almost regular.
http://4.bp.blogspot.com/-J9Xmngyim6A/UZiTd2FbmPI/AAAAAAAAKLU/giYImR17uDw/s1600/HFH+4500+Arhopala+amphimuta+amphimuta.jpg

B2. Arhopala major; HW with the 'V' distorted as a 'J' or L; band above it always dislocated.
https://1.bp.blogspot.com/-6dTySaXY6ws/UI4oiY9d_tI/AAAAAAAAPhw/r_6tsA82VEg/s1600/A_major_adult_Federick_01.jpg




TL Seow: Cheers.

[DaveChiangMai]

Many thanks for the very detailed replies.