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Thread: ID requests

  1. #41
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    Thank you Dr Seow!
    Jian Kai

  2. #42
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    Quote Originally Posted by LJK1410 View Post
    Hi Dr Seow,

    I got some Arhopalas that I'm not too sure about. I know this group is really difficult for a definitive ID but any pointers would be much appreciated!

    1. Arhopala athada? Thought the HW spots 6 & 7 seem quite different from a typical A.athada. Could it be something else? Shot at Upper Seletar Reservoir.
    https://www.inaturalist.org/observations/172636328
    Attachment 28452

    2. Arhopala sublustris? I recall the size was smaller than A.athada. Shot at Bukit Timah Nature Reserve.
    https://www.inaturalist.org/observations/177311767
    Attachment 28453
    Attachment 28454

    3. alea subgroup. This one was shot in Panti Forest, Johor, Malaysia.
    https://www.inaturalist.org/observations/175865453
    Attachment 28455
    Attachment 28456

    4. Another alea subgroup from Panti Forest, but no upperside shots.
    https://www.inaturalist.org/observations/175865588
    Attachment 28457
    Hi Dr Seow,

    I was relooking at the first Arhopala and thinking if it could be A.lurida. It seems to match the features you mentioned on the other thread. FW PD spot 4 dislocated and shifted outwards, HW PD completely dislocated at vein 2, HW spot 7 also shifted inwards, the markings are also contrasting quite heavily. I reattached some other shots of the same butterfly, with a glimpse of the dorsals. I've kept the editing to bare minimum, only touching the exposure slightly. Though I canít say for certain since the most important part is blocked, but the dorsal borders do seem to be widening towards the apex.

    DSCF8518.jpg
    DSCF8514.jpg
    DSCF8513.jpg
    Jian Kai

  3. #43
    Join Date
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    The Oakblues can be very difficult even if you have a specimen in hand.

    There are some errors in the past to clear up.

    The epimuta group.
    Fw with spot 4 distinctly dislocated & shifted out (visible from both margins).
    HW with postdiscal spots 5, 6, & 7 staggered in a stepladder fashion.
    HW 'V" spot in space 1b narrow & well-formed.
    HW tornal green metalmark sharply demarcated with 2-3 black spots.
    A. epimuta
    https://blogger.googleusercontent.co...E_adult_02.jpg
    A. atosia.
    https://www.butterflycircle.com/chec..._atosia_02.jpg
    A. lurida.
    https://www.inaturalist.org/observations/9232838
    https://www.inaturalist.org/observations/18162232


    The cleander group.
    FW postdiscal spot 4 in line with the rest above it (spots 5, 6, & 9),Less often there may be a slight dislocation outwards of spot 4.
    HW postdiscal spots 5, 6, & 7 not arranged in a stepladder fashion, spot 7 being on top of spot 6.
    "V" spot in space 1b not well-formed.
    HW tornal green metalmark poorly defined with a diffuse inner border.

    A. sublustris , alea subgroup.
    https://www.inaturalist.org/observations/189834021
    https://www.inaturalist.org/observations/86165404
    https://www.inaturalist.org/observations/86168391
    A. athada athada. cleander subgroup, large.
    https://www.butterflycircle.com/chec...-%20horace.jpg
    https://www.flickr.com/photos/budak/52257441172/
    A. silhetensis adorea. cleander subgroup.
    https://www.butterflycircle.com/chec...-%20horace.jpg
    https://thaibutterflies.com/wp-conte...is-adorea2.jpg
    https://species.wikimedia.org/wiki/A...eaMUpUnAC1.jpg
    Last edited by Psyche; 21-Mar-2024 at 07:07 PM.

  4. #44
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    #1https://www.inaturalist.org/observations/172636328

    The wide spacing between the postdiscal & the submarginal spots on the HW is indicative of a large species.
    The oblique shape of HW spot 6, wider at the top is indicate of A. silhetenssis.
    A. athada always have a blocky spot 6 nearly astride the cellend & spot 5.



    #2 https://www.inaturalist.org/observations/177311767

    The dull blue upperside already indicate it is A. milleri.



    #3https://www.inaturalist.org/observations/175865453
    The upperside merely shows a female.
    The straighter parallel sides of spot 6 suggest A. normani.
    https://www.singapore.biodiversity.o...doptera-000439


    #4https://www.inaturalist.org/observations/175865588
    Probably A. sublustris.
    FW spot 8 is more dislocated inwards.


    Finally this observation which I thought was A. lurida is an alea group member.
    Note mwtalmark with diffuse border.
    https://www.inaturalist.org/observations/193582308



    TLSeow; Cheers.

  5. #45
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    Hi Dr Seow,

    I shot this Pyroneura sp. from Langkawi and have no idea how to ID this genus. Any help would be much appreciated!
    DSCF1164.jpg
    https://www.inaturalist.org/observations/223492311
    Jian Kai

  6. #46
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    Post 45.
    Male Pyroneura niasana.

    Key line.
    1. ( 22 not applicable n/a )
    9. A line thru spots 6 & 7 meet the termen (outer margin) (2 n/a.)
    10. (21 n/a.)
    11. veins yellow/orange (22 n/a.)
    13. HW vein 8 scaled orange on both sides. (12 n/a.)
    14. male foreleg with hair-tuft on mid-tibia & first tarsal joint.........P. niasana.

    Only three species have a double hairtufts on the foreleg of the male, namely niasana, latoia & derna.

    P. niasana have HW vein 8 scaled orange double-sided.
    In P. derna & latoia, HW vein 8 is only scaled orange on the lower side.

    P. niasana. male 2nd pic.
    https://wingscales.com/Hesperiidae/P...iasana-burmana
    P. latoia.
    https://wingscales.com/Hesperiidae/P...-latoia-latoia
    P. derna.
    https://3.bp.blogspot.com/-jXtSJ2mJ-...0/DSC_0189.JPG



    Also
    https://www.inaturalist.org/observations/223492316

    Zela excellens.

    Zela excellens.
    Antennal club whitish ,prominent in the male.
    UnH yellow band angled/convex on the outer margin,& not reaching the inner margin (dorsum).Hard to tell sometimes.
    https://yutaka.it-n.jp/hes/92230001.html
    https://wingscales.com/Hesperiidae/Zela-excellens

    Zela onara.
    Antennal club brownish.
    UnH yellow band's outer margin straight ;band reaches inner margin (dorsum) of HW.
    https://yutaka.it-n.jp/hes/92240010.html
    https://wingscales.com/Hesperiidae/Zela-onara-solex
    Very rare & not recorded from Langkawi.


    TL seow: Cheers.
    Last edited by Psyche; 07-Jul-2024 at 11:42 PM.

  7. #47
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    Mar 2022
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    Thank you Dr Seow!
    Jian Kai

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