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Thread: A couple of Lycaenidae from Borneo

  1. #1
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    Default Some Lycaenidae from Borneo

    Hi, everyone, so a couple of weeks ago, i visited Danum Valley. But after comparing my finds with all the awesome things that some of the BC members found there the last time, i think it's safe to say that mine pales in comparison(mostly because of image quality; i am still using my crappy D60:/, but also because it was pretty cloudy and that there was little butterfly activity.) So here are some of my more interesting finds!!!

    Jamides pura tenus 2 best cropped and resized.jpg
    Jamides pura tenus

    with Nacaduba beroe neon cropped resized.jpg
    And then this Nacaduba joined in. Seems like Nacaduba beroe neon to me.

    Drupadia ravindra surindra cropped and resized.jpg
    Drupadia ravindra surindra. This race is found in NE Borneo.
    There are many other races of this species in Borneo but
    i find this race interesting as it is the only one on Borneo that is sexually dimorphic
    on both wing surfaces. This is a male; the female has the usual orange colour.

    Zeltus best 2 cropped resized.jpg
    Zeltus amasa maximinianus. Same race as Singapore but note the heavier submarginal markings.

    Acytolepis ripte best resized and cropped.jpg
    Bornean endemic!!! Acytolepis ripte. Found in the late afternoon on bird poop.

    Aaaaand more to follow... including a few more endemics. This is all that i can process for now haha.
    Last edited by atronox; 16-Jul-2016 at 03:00 AM.
    Aaron Soh

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    Post 1 no.2 Nacaduba normani.
    The dark striae are disintergrated, almost obsolete ruling out both berenice & calauria.
    The FW postdiscal is dislocated & the submarginal spots are large, conical & dark.
    N. normani has become a pest , the larva feeding on young Coacoa leaves. Range; Borneo, Sulawesi.
    https://species.wikimedia.org/wiki/N...niMUpUNAC1.jpg

    TL Seow : Cheers.

  3. #3
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    Whoa, lucky to visit Danum. A place I dream to see again... and again...

    Last time we didn't find so many butterflies too.... but plenty of other animals

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    Quote Originally Posted by Psyche View Post
    Post 1 no.2 Nacaduba normani.
    The dark striae are disintergrated, almost obsolete ruling out both berenice & calauria.
    The FW postdiscal is dislocated & the submarginal spots are large, conical & dark.
    N. normani has become a pest , the larva feeding on young Coacoa leaves. Range; Borneo, Sulawesi.
    https://species.wikimedia.org/wiki/N...niMUpUNAC1.jpg

    TL Seow : Cheers.
    I have a reason to believe that this is probably not normani because i have a shot of what is definitely normani which i will share soon.
    Aaron Soh

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    Nacaduba normani best cropped resized-min.jpg
    Nacaduba normani normani. The ID is definite as i have confirmation from the dorsal.
    This is the only species in the berenice group to have the wide grey border on the dorsal hindwing
    which rules out berenice and calauria and which can just about be seen in the next, blurry photo. The rounded forewing apices are also quite distinctive.

    Nacaduba normani upper best cropped resized-min (1).jpg
    Nacaduba normani normani(dorsal)

    Nacaduba normani 2 best cropped resized.jpg
    Probably N. calauria malayica. I didn't manage to get a dorsal.
    Sorry about the quality; this was taken from a distance.

    Nacaduba sanaya best 1 cropped resized-min.jpg
    N. sanaya elioti. Same race as Singapore but once again, as with many Bornean taxa, the submarginal
    markings are heavier. When i first saw this i thought it was the rare, endemic N. asaga but the
    vibrant blue dorsal rules that out.

    Nacaduba sanaya upper 1 cropped resized-min.jpg
    N. sanaya elioti(peek at dorsal)

    Prosotas finger best cropped resized-min.jpg
    Prosotas dubiosa subardates. Again with much heavier submarginal markings than the local race.

    Cheritra pallida best cropped-min.jpg
    Cheritra pallida. Apparently, freja ochracea has been synonymised with this species.

    Nacaduba aberrant best ropped resized-min.jpg
    This is probably an aberration of something that's otherwise quite ordinary. Maybe a Prosotas sp.

    Nacaduba aberrant upper cropped resized.jpg
    Dorsal of previous individual.
    Aaron Soh

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    Quote Originally Posted by Angiud View Post
    Whoa, lucky to visit Danum. A place I dream to see again... and again...

    Last time we didn't find so many butterflies too.... but plenty of other animals
    Yes, it was a fantastic place. Too bad sunshine wasn't at it's maximum otherwise i would've probably got many more.
    Aaron Soh

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    Quote Originally Posted by atronox View Post
    I have a reason to believe that this is probably not normani because i have a shot of what is definitely normani which i will share soon.
    Unless there are other species of 6line blues in Borneo, I am quite confident it is N. normani.
    Wingshapes are easily distorted in photos & I have learned not to rely on them too much.

    You cna pretty much discount N. berenice , calauria & kurava .These have define black striae in the bands.
    That leaves N. beroe & normani. The dark striae here are poor as can be seen in the set specimens & a field shot.
    Note the wingshape is also distorted.
    The large dark submarginal spots match very well.

    The ssp of N beroe appeared to be the same in Sumatra, Malaya & Borneo.
    N. beroe is not rare & there are good examples. The submarginal spots are different & the wingbase usually darkened.
    http://2.bp.blogspot.com/-2iA9V4YMtR...0/DSC_0245.JPG
    http://1.bp.blogspot.com/-HvpFxJKK7J...0/DSC_0096.JPG

    The aberration judging by its large dark submarginal spots is also N. normani.

    TL Seow: Cheers.

  8. #8
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    Quote Originally Posted by Psyche View Post
    Unless there are other species of 6line blues in Borneo, I am quite confident it is N. normani.
    Wingshapes are easily distorted in photos & I have learned not to rely on them too much.

    You cna pretty much discount N. berenice , calauria & kurava .These have define black striae in the bands.
    That leaves N. beroe & normani. The dark striae here are poor as can be seen in the set specimens & a field shot.
    Note the wingshape is also distorted.
    The large dark submarginal spots match very well.

    The ssp of N beroe appeared to be the same in Sumatra, Malaya & Borneo.
    N. beroe is not rare & there are good examples. The submarginal spots are different & the wingbase usually darkened.
    http://2.bp.blogspot.com/-2iA9V4YMtR...0/DSC_0245.JPG
    http://1.bp.blogspot.com/-HvpFxJKK7J...0/DSC_0096.JPG

    The aberration judging by its large dark submarginal spots is also N. normani.

    TL Seow: Cheers.
    According to Seki and Takanami(1991), there are four species on Borneo with the dark lines alongside the striae: kurava, calauria, berenice and normani. I felt that this specimen was beroe because it lacks this feature and also because another diagnostic feature of beroe according to the same authors was that it lacks a pair of costal white dashes above the subbasal lines on the forewing.

    On Borneo there seems to be a tendency for species to have very pronounced submarginal spots(especially females), even though the Bornean subspecies might be the same as the Malayan subspecies. So although the subspecific name may be the same, they are still quite different in appearance nevertheless because of biogeographical factors. I personally feel that it would not be very useful to compare specimens from Malaya and Borneo because despite the identical name, they are still quite different physically. In fact all the Nacaduba from Borneo that supposedly are the same subspecies as those from Malaya(that's all except angusta and berenice) look different enough to be treated as different races but are not distinguished for some reason.

    The darkened wing bases seem to be a feature only found in males as Seki and Takanami illustrate a female without this feature.

    As for the aberration, i initially thought it was normani as well but the dark grey borders on the dorsal hindwing are a thread so i'm stumped.
    Aaron Soh

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    with Nacaduba beroe neon cropped resized.jpg
    I have resized and attached the same photo for ease of viewing.
    Aaron Soh

  10. #10
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    All female 6 line blues have well-developed dark striae, including N. beroe. so yours is a male.

    The set male specimen below is definitely N. normani as can be seen from the brown border on the upperside HW.
    On the underside all the dark striae are poorly developed some being absent.
    https://species.wikimedia.org/wiki/N...niMUpUNAC1.jpg

    TL Seow; Cheers.
    PS. Field shots are particularly hard to ID if not in focus.
    I feel that the shots labelled as N. normani is actually N. calauria.
    The HW brown border is doubtful , & does not match the set specimen of N. normani.
    The rounded FWs & well-developed dark striae are also typical of N. calauria.
    N. calauria from Singapore. Dark striae strong ; FW band usually straight; FW submarginal spots 4 & 5 pointed.
    http://www.butterflycircle.com/check...yica---2--.jpg
    https://c2.staticflickr.com/6/5645/2...8fab0615_b.jpg

    It is probable the one labelled N. calauria is N. normani because the dark striae are weak & the FW band wavy.
    Last edited by Psyche; 17-Jul-2016 at 06:56 PM. Reason: PS

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