An odd s Thailand skipper

[DaveChiangMai]

Ideas please for this mating pair of skippers from Betong, s Thailand 26 Jun 25.
If I'd only seen one of these I'd have thought Quedara montheithi.
But males of that species do not have a white bar on the forewing.
My next thought would be Q. albifascia but the antennae do not have a large white section (just one single small spot).
Oerane microthyrus might be another possibility, but the extent of the white bars on the FW is not correct.
So stumped on this one.
Many thanks.

28839

28840

[Psyche]

https://www.butterflycircle.com/attachment.php?attachmentid=28839&d=1751698610

This is a very tricky one.

After cross checking all possibilities it has to be Oerane microthyrus.

Quedara species have black antennae and Q. albifascia have additional spots on the UnF.
https://yutaka.it-n.jp/hes/91860001.html


Hyaritis stubbsi have somewhatsimilar antennal spot but UnF always have additional spots.
In addition the UnH is marked by a broad dark fascia.
https://yutaka.it-n.jp/hes/91830001.html
Male.
https://www.gbif.org/occurrence/2847177114
Female.
https://yutaka.it-n.jp/npict15c/91830001_n003.jpg
https://wingscales.com/Hesperiidae/Hyarotis-stubbsi


This leaves only Oerane microthyrus.
The underside markings matches this species.
Oerane microthyrus have a large white patch on the antennal club but this is mainly on the underside.
At a certain angle, topdown view, only a little dot is visible.
See 4th fieldshot below.
https://yutaka.it-n.jp/hes/91810010.html
Also last fieldshot dated 26th April 2015 below.
https://nlliew66butterflies.blogspot.com/2015/02/the-demon-flitter-oerane-microthyrus.html

TL Seow: Cheers.

[DaveChiangMai]

Many thanks for the deliberations.
That was indeed a tricky one.