Dear Dr Seow,
May I know if the attached is a Yellow Archduke or Dark Archduke?
Thank you.
Tim
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Dear Dr Seow,
May I know if the attached is a Yellow Archduke or Dark Archduke?
Thank you.
Tim
It is a female Lexias canescens.
There is a series of 5 spots parallel to the lower margin of the FW.
The 3rd spot (ie middle of the five) is single .
The male have the antennal tip black.
In the female the tip is orange shaded black .
Males.
https://4.bp.blogspot.com/-X5LrsCHXB...hduke-KSK3.jpg
Below, note 3rd spot is partially split.
https://1.bp.blogspot.com/-jVWJ0uJjG...-DavidChan.jpg
Females.
https://1.bp.blogspot.com/-aFDi932jw...uke-KohCH2.jpg
https://1.bp.blogspot.com/-ojWkHn5QE...hduke-JonS.jpg
Pair. The fresh female is at the bottom.
https://3.bp.blogspot.com/-fSFenHiLU...e-NelsonO2.jpg
In L. pardalis & dirtea females, the 3rd spot is completely split into two.
Female L. pardalis.
https://upload.wikimedia.org/wikiped...n_archduke.jpg
Female L. dirtea.
https://www.butterflycircle.com/chec...erick%20Ho.jpg
TL Seow: Cheers.
Thank you, Dr Seow.
Hi Dr Seow,
Do you think the attached is Lexias pardalis? Attachment 28433
Post 3.
Female Lexias dirtea. (Possibly some gene introgression from L. pardalis.)
Attachment 28435
In the past there have been some confusion between L. dirtea & pardalis.
Lexias pardalis .
Antennal club with the apical third orange.
This orange extend all round the club, though occasionally a thin black line may continue to the tip.
The underside of the club is orange.
The female generally have yellow spots, & the 4th spot parallel to the lower margin is more elliptic.
https://www.inaturalist.org/observations/120917103
https://www.inaturalist.org/observations/137251675
https://www.inaturalist.org/observations/145488952
https://www.inaturalist.org/observations/165903737
https://www.inaturalist.org/observations/172506114
https://www.inaturalist.org/observations/184680007
https://www.inaturalist.org/observations/121981372
Lexias dirtea.
Antennal club all black above.The black may be wanting along the edges.
Underside of club orange as in L. pardalis.( This has cause a lot of confusion.)
Side view of club shows black extending to the tip along the upper edge.
Female 4th spot tend to be long & narrow; spots more often white & blue tinged.
https://www.inaturalist.org/observations/112828149
https://www.inaturalist.org/observations/128747587
https://www.inaturalist.org/observations/143999120
https://www.inaturalist.org/observations/153806407
https://www.inaturalist.org/observations/155277769
https://www.inaturalist.org/observations/175484832
https://www.inaturalist.org/observations/183618229
There are many examples which appear intermediate.
The two species are very closely related & could easily cross.
eg. The apical third of the antennal club appear to be lightly dark-shaded.
https://www.inaturalist.org/observations/181493424
General yellower appearance suggest L. pardalis.
https://www.inaturalist.org/observations/172974879
The topside of the club have the black extending to the tip.
A top view would help a great deal.
https://www.inaturalist.org/observations/127114530
TL Seow: Cheers.
Thank you Dr Seow, that is very interesting. There are natural hybrids around. Next time I shall try to take photos from different angles.
Tim
Hi Dr Seow, I also come across these two Lexias canescens. The one on the right is much bigger.
TimAttachment 28436Attachment 28437
Post 7.
Mst likely the left one is male & the right one is female.
The sexes can be very hard to separate.
Even females may have the antennae very dark in fieldshots.
Quote:
Originally Posted by Yam Tim Wing
In this previous shot, there appear to be a strong hybrid element.
In normal L. pardalis the orange antennal tip is visible without any adjustment.
https://inaturalist-open-data.s3.ama...2114/large.jpg
https://inaturalist-open-data.s3.ama...9634/large.jpg
https://inaturalist-open-data.s3.ama...0614/large.jpg
Likewise for L. dirtea. the antennal tip is clearly black.
https://inaturalist-open-data.s3.ama...448/large.jpeg
https://inaturalist-open-data.s3.ama...2904/large.jpg
https://inaturalist-open-data.s3.ama...9869/large.jpg
This one looks intermediate but does have a lot of black shading on top.
I feel it is closer to L. dirtea.
But do make your own judgement.
TL Seow:Cheers.
Thank you so much, Dr Seow.