Which Horaga?

[itsmemei]

Dr Seow, please help with the ID of this Horaga, thank you!

https://live.staticflickr.com/65535/51797126062_239de48ddc_b_d.jpg
https://live.staticflickr.com/65535/51798197278_6c06bc0755_b_d.jpg

[Psyche]

It should be correct as a male Horaga onyx sardonyx.
Note UnH white band cut across vein 1a.

In Singaporec& P. Malaysia, Horaga syrinx maenala always have the FW white spot narrow especially in the male.
The UnH white band does not cross vein 1a.
The upperside blue is brighter.
https://2.bp.blogspot.com/-im-auEsx1Vc/Vuz3uOh9yOI/AAAAAAAAO68/IKcDpdxxJCUDSWWBFnxfX-Z0iuacE9wqA/s1600/AmbonOnyx3-SunnyC.jpg
http://www.butterflycircle.com/checklist/mugshots/Horaga%20syrinx%20maenala/1DMK3----1261---04_02_2011.jpg

North in S. Myanmar & central Thailand it gets complicated as H. syrinx moulmeina have a big white spot & looks identical to H. onyx.
However on the UnH the white band still do not cut across vein 1a.
http://yutaka.it-n.jp/lyc4g/83170020.html
https://thaibutterflies.com/wp-content/uploads/2016/07/Horaga-syrinx-1.jpg
https://thaibutterflies.com/project_category/lycaenidae/page/35/

Forms with big white spot is unknown here.

H. onyx sardonyx upperside is a dingier ,morepurplish blue.
FW white spot larger & notched.
UnH the white band continue across vein 1a.
http://yutaka.it-n.jp/lyc4g/83160010.html
Upperside ssp. onyx.
https://indiabiodiversity.org/observation/show/15074216



Collection in the Past.
Bulletin British Museum.1966
https://archive.org/details/bulletinofbritis18entoond/page/n212/mode/1up?view=theater
Plate 1 with legends.
Note the three figures on the right side.
Fig 3 H. onyx sardonyx
Fig 6 H. syrinx maenala f-maenala (invalid name)
Fig 9. H. syrinx maenala f- halba (invalid)

All three speciemens are taken in Singapore.


TL Seow:Cheers.

PS. Here is a female H. syrinx .
Vein 2 ends with the longest tail ; vein 1b with the 2nd longest tail.
The tip of the curved part of the white band ends at vein 1a.
https://inaturalist-open-data.s3.amazonaws.com/photos/118695402/original.jpg

In the your image Google zoom will show clearly vein 1a interrupting the white band ie the band crosses it.

[itsmemei]

Thank you, Dr Seow.

I believe that the following Horaga is also H. onyx, based on the ID key that the UnH white band cut across vein 1a? Is it a male or a female? The FW termen is rounder than the H. onyx in post 1.

https://live.staticflickr.com/65535/51828334471_f5e5ff38e0_b_d.jpg

[Psyche]

It is a female H. onyx.
The abdominal end which a broad slanted cut indicate a female.
The male have a truncated brush like end.

The 2nd segment of the labial palp (palpus) is longer in the female.
The male in post 1 have an injury to the labial palp.


TL Seow: Cheers.
Male showing the truncated abdominal end.
https://www.flickr.com/photos/gancw1/46395044421

[itsmemei]

Thanks, Dr Seow

[itsmemei]

Need ID confirmation.... is it a female H. onyx? It has a rounder FW termen, which is typical of a female? But it does not have a broad slanted cut on its abdominal end and the labial palp is shorter than the female in post #3.

https://live.staticflickr.com/65535/51851374353_fe16993cb0_b_d.jpg

[Psyche]

Post 6.
It is a male.

There is some variation in wingshape.

Some males have wingshape closer to the female & vice vera.

Mating pairs.

Male on the left.
https://1.bp.blogspot.com/-AueW8P58pwk/Vuz29QhFLlI/AAAAAAAAO6o/gOkk_x4KbDM7K00WWkYnhaCP2Lr6PgPGw/s1600/AmbonOnyx12-SunnyC.jpg

Female on the left.
https://3.bp.blogspot.com/-XtymzjuAwts/Vuz4DeuhtqI/AAAAAAAAO7I/Q0xK6T7WKN09g_e9zp23WSm8CbSeFxrkA/s1600/AmbonOnyx2-LokePF.jpg


Male.
http://www.butterflycircle.com/checklist/mugshots/Horaga%20syrinx%20maenala/_K3_0270--1.jpg
Female.
http://www.butterflycircle.com/checklist/mugshots/Horaga%20syrinx%20maenala/Ambon%20Onyx%20-%20Khew.jpg


TL Seow: Cheers.

[itsmemei]

Thank you, Dr Seow!