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A few Arhopala species from central Peninsula Thailand I am having difficulties to identify.
Any assistance gratefully received.
All photographed around Phang-nga.
1) I think A. phaenops.
2) I think A, ariana or A. evansi.
3) Not sure. Either A. epimuta, A muta, or A. moolaiana.
4) Not at all sure. Cannot find a good match.
Image 1.
Attachment 26257
Image 2.
Attachment 26258
Image 3.
Attachment 26259
Image 4.
Attachment 26260
#1 Arhopala agrata binghami from the lack of costal spots on the forewing and the last costal spot of the post-discal band being very faint. Spots 6 and 7 on the hindwing are also unique. Also, the forewings are much more angular than the hindwings and this contrast gives it a striking appearance which can be seen here
#4 This one's interesting. I could be wrong but i think this has to be Arhopala delta because of the lack of costal spots on the forewing and the fact that it is tailed despite spots 6 and 7 on the hindwing being out of line. The only other species with these characters is A. allata which it is not because that species has more rectangular spots.
Many thanks for the feedback on those two. Having checked indeed #1 looks like agrata, although the race in southern Thailand should be the nominate according to the literature.
1. Using the key this does sort of keyed out as A. agrata.
However A. agrata is quite consistent in appearance.
FW spot 9 obscure/absent HW spot 6 large trapezoid.
P. Thailand
https://thaibutterflies.com/Butterfl...hopala-agrata/
Singapore.
https://2.bp.blogspot.com/_0EK80AsaR...3-Arhopala.jpg
P. Malaysia.
http://nlliew66butterflies.blogspot....niceville.html
Examples from Borneo are similar.
This one differs in the FW band being very narrow & the HW spot 6 differently shaped.
Possibly a variant or aberration.
2. A member of the alea subgroup, HW band completely dislocated at vein 2.
Either A. selta or phaenops.
Probably A. selta from the purple flush.
https://thaibutterflies.com/Butterflies/arhopala-selta/
http://thaibutterflies.com/project_t...pala-phaenops/
3. A. moolaiana.
HW toothed at vein 2 & faint white dot at tornal cilia.
HW spot in space 1b broadly 'V' shaped. HW spot 6 large.
http://thaibutterflies.com/project_t...ala-moolaiana/
4. Should be correct as A. delta.
The deciding factor is HW band is only partially dislocated at vein 2.
In the similarly marked A. lurida/atosia the band is comletely dislocated at vein 2.
A. delta.
https://en.wikipedia.org/wiki/Arhopa...taMUpUnAC1.jpg
A. allata.
https://en.wikipedia.org/wiki/Arhopa...taMUpUnAC1.jpg
A. lurida.
https://en.wikipedia.org/wiki/Arhopa...daMUpUnAC1.jpg
TL Seow: Cheers.
With many thanks for the detailed replies.