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Post by isidro on Aug 26, 2019 8:54:52 GMT
First:  If I interpret correctly the label, it comes from Aru Islands??  Second:  No locality tag, but it have a tag telling the species. However I can only read part of it: "Sider". so I assume it's in genus Siderus. No images of Siderus in Google looks the same to this specimen for me... |
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Post by Paul K on Aug 26, 2019 12:19:13 GMT
They both look like Arhopala species but without underside correct ID I’m afraid won't be possible.
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Post by isidro on Aug 26, 2019 21:38:53 GMT
Thanks. The blue one is noticeably bigger than the green one. Being so different it's a pity that a closer ID is not possible  Then do you think that Siderus is an error of identification? |
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Post by Paul K on Aug 26, 2019 23:53:38 GMT
Siderus is a genus from South America, Aru Is. are in Indonesia so most likely it is Arhopala. Underside would definitely solve the mystery either way the error is in locality or genus.
If Blue one is bigger it could be Arhopala centaurus which is much bigger than other Arhopala and that would be the male.
The antennas look also more like those in Arhopala genus not Siderus.
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Post by isidro on Aug 27, 2019 5:22:20 GMT
Hey Paul! The Aru Is tag (if interpreted correctly) belongs only to the first specimen! The second one can be from anywhere in the world. So, the Siderus option is to be considered - but I can't find any plain green species.
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Post by Adam Cotton on Aug 27, 2019 11:53:55 GMT
There are many green Arhopala species. As Paul said these species and related genera can generally be distinguished on the underside.
Adam.
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Post by nomihoudai on Aug 27, 2019 13:08:12 GMT
It is not a Siderus. It is most likely a Chrysozephyrus. The Arhopala is not centaurus, nor do I think that it is in the centaurus group (A. araxes etc.). The wings look more fragile, I guess it had a checkered pattern on the underside and not a uniform color. That would make it from the Arhopala thamyras group.
In any case, as Adam said Lycaenidae are distinguished best from their ventral side.
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Post by isidro on Aug 28, 2019 10:01:24 GMT
Oh, shame! How many Arhopala species occurs on Aru Islands? |
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Post by Adam Cotton on Aug 28, 2019 11:04:47 GMT
Oh, shame! How many Arhopala species occurs on Aru Islands? Probably at least several, maybe many. Adam. |
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Post by Adam Cotton on Aug 28, 2019 11:06:50 GMT
It is not a Siderus. It is most likely a Chrysozephyrus. It could well be a Chrysozephyrus. It does look similar to those from my distinctly un-knowledgable eye. Adam. |
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Post by isidro on Aug 29, 2019 9:31:21 GMT
With this one maybe we have more good luck. May be a Chrysozephyrus again, but this time it have collection data: it was taken at Manipur, India. It's possible the ID given this location?  |
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Post by Paul K on Aug 29, 2019 11:47:04 GMT
It looks like Arhopala hellenore but to be sure ventral side is needed.
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Post by nomihoudai on Aug 29, 2019 13:52:11 GMT
That is an Arhopala. It is A. hellenore as Paul suggested.
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Post by isidro on Aug 30, 2019 7:39:50 GMT
Hey many thanks to both! Finally one identified to species, yay!  |
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Then do you think that Siderus is an error of identification?
