Request for ID

[Samuel T]

Dr Seow, appreciate your help to confirm the ID of this butterfly. Thanks.

Regards
Samuel

[atronox]

Arhopala pseudomuta pseudomuta but with the costal spot in space 11 of the forewing very faint

[Samuel T]

Thanks Aaron

[Psyche]

In Singapore Arhopala pseudomuta can become confused with Arhopala alitaeus.

Both belong to a group with extra FW costal spots; FW postdiscal band irregular with spot 4 dislocated & shifted out.

Arhopala pseudomuta pseudomuta.
HW postdiscal spot 6 trapezoid or more quadrate; HW submarginal spots form a continuous low wavy band; Markings less contrasted.
http://farm6.static.flickr.com/5287/...654deea8_b.jpg
http://www.butterflycircle.com/check...1---Horace.jpg
http://www.butterflycircle.com/check...-%20Horace.jpg

Arhopala alitaeus pardenas.
HW postdiscal spot 6 large with rounded margins ,often ovoid; HW submarginal spots mostly discrete & separate ;markings strongly contrasted; often purple-washed.
http://1.bp.blogspot.com/-nEFhYQjWz6...%2BHoraceT.jpg
http://1.bp.blogspot.com/-84xMvQJLuj...-%2BChngCK.jpg
http://2.bp.blogspot.com/-M8h229SNGs...%2BHuangCJ.jpg

Intermediate.
HW spot 6 have less rounded margins than in alitaeus ; HW submarginal spots less discrete; markings also less contrasted than in alitaeus.
Thisc probably have a hybrid element.
It has more the characters of A. alitaeus & probably should be treated as such.
http://farm6.static.flickr.com/5165/...37e569f7_b.jpg

TL Seow: Cheers.