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Thread: ID Request - Peninsular Malaysia - Jan 5, 2025

  1. #1
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    Default ID Request - Peninsular Malaysia - Jan 5, 2025

    Hi Dr. Seow,
    Happy New Year 2025. Requesting your help to id my observations.

    A) Location: Lata Bayu Waterfalls, near Baling, Kedah - January 3, 2025

    #1 Lotongus calathus?
    https://www.inaturalist.org/observations/257231436

    #2 Skipper?
    https://www.inaturalist.org/observations/257231435

    #3 Amathusia?
    https://www.inaturalist.org/observations/257224649

    =============================

    B) Location: Hutan Lipur Bukit Hijau, near Kulim, Kedah - January 3, 2025

    #4 Skipper?
    https://www.inaturalist.org/observations/257224645

    =============================

    C) Location: Hutan Lipur Titi Hanyut, near Yan, Kedah - January 2, 2025

    #5 Tanaecia?
    https://www.inaturalist.org/observations/257122689

    #6 Arhopala?
    https://www.inaturalist.org/observations/257122685

    #7 Tanaecia?/Euthalia?
    https://www.inaturalist.org/observations/257122675

    ================================

    D) Location: Seri Perigi Waterfalls, Yan, Kedah - January 2, 2025

    #8 Euthalia djata?
    https://www.inaturalist.org/observations/257109542

    ===================================

    E) Location: Penang Botanic Gardens

    #9 Oakblue? January 1, 2025
    https://www.inaturalist.org/observations/256995948

    #10 Erionata? Dec 30, 2024
    https://www.inaturalist.org/observations/256903185

    #11 Skipper? Dec 30, 2024
    https://www.inaturalist.org/observations/256322424

    #12 Arhopala? Dec 30, 2024
    https://www.inaturalist.org/observations/256903171

    #13 Arhopala? Dec 30, 2024
    https://www.inaturalist.org/observations/256903169

    #14 Arhopala? Dec 25, 2024
    https://www.inaturalist.org/observations/256164205

    #15 Arhopala? Dec 25, 2024
    https://www.inaturalist.org/observations/256164203

    ======================

    F) Location: Sungai Sedim, near Kulim, Kedah - Dec 26, 2024

    #16 Skipper?
    https://www.inaturalist.org/observations/256485339

    #17 Arhopala?
    https://www.inaturalist.org/observations/256372801

    #18 Arhopala?
    https://www.inaturalist.org/observations/256372799

    #19 Arhopala?
    https://www.inaturalist.org/observations/256372793

    #20 Zela excellens?
    https://www.inaturalist.org/observations/256322424

    Sungai Sedim, Kedah - Date: Dec 20, 2024
    #21 Tanaecia?
    https://www.inaturalist.org/observations/255679235

    Cheers from Penang,
    SL Liew
    Last edited by SL Liew; 06-Jan-2025 at 10:43 PM.

  2. #2
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    1.https://www.inaturalist.org/observations/257231436
    Lotongus calathus.
    No other skipper have a UnH apical white band.
    https://yutaka.it-n.jp/hes/92200001.html


    2.https://www.inaturalist.org/observations/257231435
    Probably Suastus gremius.
    Clarity problem.
    Upperside as in Suastus; antennae all black.
    No other species have UnH white-ringed dark spots.
    https://media.istockphoto.com/id/179...butterfly.jpg?
    s=612x612&w=0&k=20&c=HlRb6pYMcuXXM1hch5ihAiO8mDZdr FFKO9TshFgGmck=



    3. https://www.inaturalist.org/observations/257224649
    Female Amathusia masina .

    Amathusia is extremely difficult.

    Four species can be eliminated based on the shape of the various bands.
    They are A. phidippus, ochraceofusca, Honrathi & perakana.

    The other three all have the paler 4th band from base UnH notched on the sides.
    The female masina have a longer UpF orange band that extend & joined the submarginal band in space 3.
    The other two have shorter orange bands that joined the submarginal band in space 4.

    A. friderici
    UnF median band relatively narrow, not reddish, as in A. phidippus.
    https://yutaka.it-n.jp/ama/50330010.html

    A. binghami.
    UnF median band broad & reddish ;postdiscal band with the usual colour break along the middle.
    https://www.worldfieldguide.com/spec...php?taxno=6870
    Female, Plate 2 fig 6.
    https://mothsofborneo.com/Corrigenda...Jun01_2021.pdf


    A. masina.
    UnF median band broad & reddish, postdiscal band usually solid without a middle colour-break.(Almost merging with median band.)
    Female less distinctunderside, but UpF orange band broad.
    https://yutaka.it-n.jp/ama/50360010.html
    Typical males.
    https://thaibutterflies.com/wp-conte...a-masina-1.jpg
    https://www.gbif.org/occurrence/2847204563
    Last edited by Psyche; 10-Jan-2025 at 07:30 AM.

  3. #3
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    4.https://www.inaturalist.org/observations/257224645
    Uncertain. Looks to be an off-focused Pemara pugnans.
    https://inaturalist-open-data.s3.ama...5322/large.jpg


    5.https://www.inaturalist.org/observations/257122689

    Uncertain but probably Tanaecia iapis (cocytina) rather than T. flora.
    This is because T. flora in nearby areas have strong black margins.
    https://www.inaturalist.org/observations/255164389
    https://www.inaturalist.org/observations/238915936
    T. iapis from Yala, S. Thailand.
    https://yutaka.it-n.jp/nplim2/721070010_n001.jpg

    T. flora flora range Ipoh to Kedah river.
    ?Kinta Valley.
    https://www.gbif.org/occurrence/2847205019
    Added PS. The appearance here is very like T. godartii & could be a variant with wide blue border.



    6.https://www.inaturalist.org/observations/257122685
    Arhopala inornata.
    Markings as in the amphimuta group; small ,rounded HW; no tornal meatallic patch.
    https://yutaka.it-n.jp/lyc4f/81980001.html
    https://wingscales.com/Lycaenidae/Ar...rnata-inornata



    7.https://www.inaturalist.org/observations/257122675
    Female Euthalia monina.
    Distinct markings; FW space 1b sub-basal area with two small spots ,often like a fig-of-eight.ID certainty; also HW zigzag line continuous.
    All Tanaecia have a single large sub-basal spot in FW space 1b.
    Female E. monina
    https://www.gbif.org/occurrence/4535642787
    https://www.gbif.org/occurrence/4923873666
    Last edited by Psyche; 07-Jan-2025 at 07:18 PM.

  4. #4
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    8.https://www.inaturalist.org/observations/257109542
    Female Euthalia djata.
    The FW postdiscal white band is parallel to the margin.
    In all other species in the group, yhis band is oblique.
    https://yutaka.it-n.jp/lim2/721160010.html



    9. https://www.inaturalist.org/observations/256995948
    Probably A. amphimuta.
    The markings are that of the amphimuta; there is a small tooth at vein 2, no tornal white dot; HW postdiscal spots in line.



    10. https://www.inaturalist.org/observations/256903185
    Looks to be Erionota torus male.
    FW margin is definitely convex; hW patch large, not constricted as in acroleuca.
    The white shadings on FW apex is also seen in torus & thrax (variable).
    https://www.ifoundbutterflies.org/si...17edef-1_0.jpg
    https://www.ifoundbutterflies.org/si...592f1d-1_0.jpg

    E. acroleuca
    https://www.ifoundbutterflies.org/si...9cd1c3-1_2.jpg
    https://res.cloudinary.com/ppc1/imag...m4sttsv7f8.jpg



    11.https://www.inaturalist.org/observations/256322424
    Zela onara.
    Two species very similar.

    Z. excellens
    Antennal clubs whitish above ;HW yellow band angled on the outer border.
    https://blogger.googleusercontent.co...+excellens.jpg
    https://wingscales.com/Hesperiidae/Zela-excellens


    z. onara.
    Antennal clubs dark; HW yellow band's outer border regular.
    https://thaibutterflies.com/wp-conte...la-onara-2.jpg
    https://wingscales.com/Hesperiidae/Zela-onara-solex
    Last edited by Psyche; 10-Jan-2025 at 06:58 AM. Reason: typo

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    12.https://www.inaturalist.org/observations/256903171

    13.https://www.inaturalist.org/observations/256903169

    Both are probably Arhopala pseudomuta

    They have the markings of the alitaeus group.

    The markings are not strongly contrasted.
    Examples of A. pseudomuta.
    Note HW spot 6 have rounded margins.
    https://www.butterflycircle.com/chec...-%20Horace.jpg
    https://www.butterflycircle.com/chec...-%20Horace.jpg

    A. elopura also poorly contrasted markings but the margins are mainly straight.
    https://thaibutterflies.com/wp-conte...la-elopura.jpg

    A. ariana have darker more contrasted markings, the ground with a slight pinkish wash.
    https://thaibutterflies.com/wp-conte...ala-ariana.jpg



    14.https://www.inaturalist.org/observations/256164205

    15.https://www.inaturalist.org/observations/256164203

    These are both member of the alea subgroup, cleander group.
    The HW markings are as in the alitaeus group above, but the FW band is continuous & not broken in space 4, ie spot 4 is not dislocated out.

    The speciea are very difficult to separate even with a specimen in hand.

    At a guess these two looks to be A. phanda.
    HW postdiscal spots 6 & 7 large, are aligned in a vertical column.
    https://singapore.biodiversity.onlin...doptera-000442
    Added : examples of A. phanda.
    https://www.gbif.org/occurrence/2847201306
    https://www.gbif.org/occurrence/2847201323
    https://www.gbif.org/occurrence/2847203462
    https://www.gbif.org/occurrence/2847201329
    Last edited by Psyche; 08-Jan-2025 at 06:07 PM.

  6. #6
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    16.https://www.inaturalist.org/observations/256485339
    Female Salanoemia fuscicornis.

    It is extremely difficult if not impossible to ID skippers based on one surface.
    However the antenna does provide a clue here.

    In the female Salanoemia the antennal tip is black with a whitish spot near its base.

    S. sala lacks upF hyaline subapical spots seen here.
    https://www.ifoundbutterflies.org/si...ji_ad522_1.jpg
    https://yutaka.it-n.jp/hes/92150001.html

    S. fuscicornis.
    https://yutaka.it-n.jp/hes/92160001.html
    https://wingscales.com/Hesperiidae/S...ia-fuscicornis

    17.https://www.inaturalist.org/observations/256372801
    Arhopala amphimuta milleriana.

    The underside is that of the amphimuta group, tooth at vein 2, no white tornal spot.
    Upperside with narrow dark borders on both wings.
    https://en.wikipedia.org/wiki/Arhopa...naMUpUnAC1.jpg
    Ssp amphimuta have the upperside border a thread.



    18.https://en.wikipedia.org/wiki/Arhopa...naMUpUnAC1.jpg
    This have no tornal metalmark & is probably A. inornata, but the HW should be rounded.



    19.https://www.inaturalist.org/observations/256372793
    Probably Arhopala norda.
    The underside is that of the amphimuta group. HW tooth at vein 2, a distinct white tornal spot and so can only be either A. norda or moolaiana.

    t am assuming that A. norda have mostly narrow markings & A. moolaiana have fat markings.

    A. norda.
    https://thaibutterflies.com/wp-conte...pala-norda.jpg
    A. moolaiana.
    https://thaibutterflies.com/wp-conte...a-1080x675.jpg



    21. https://www.inaturalist.org/observations/255679235
    Male Tanaecia godartii asoka.

    Both T. godartii & flora have the blue band that tapers upward & the margins regular.
    They can be confused in fieldshots.

    T. godarti have a narrower band barely edged black, & FW apex rounded.
    UpF with a distinct pstdiscal line nearer to margin at apex.
    https://www.gbif.org/tools/zoom/simp...23a32d6c7273fa
    https://www.gbif.org/occurrence/2847204928
    https://www.gbif.org/occurrence/2847204935


    Tanaecia flora have the blue band broader & edged black on the FW.
    UnF with the postdiscal line largely irregular, crenulate or obsolete; marginal zone often whitish.
    https://www.gbif.org/occurrence/2242800920
    sSp andersonii.
    https://www.gbif.org/occurrence/2847205013
    ssp flora
    https://www.gbif.org/occurrence/2847205019


    T. iapis usually have irregularly margined blue band that do not aligned well.
    Typical.
    https://learnbutterflies.com/horsfields-baron/
    Singapore.
    https://www.butterflycircle.com/chec...ron)---net.jpg


    20.https://www.inaturalist.org/observations/256322424
    Duplicate observation.



    TL Seow: Cheers.

  7. #7
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    Thank so much Dr. Seow for your kind help and detailed information. Appreciate them. Cheers, SL Liew

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