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Thread: ID request - Butterflies of Peninsular Malaysia - May 1, 2025

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  1. #5
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    7a.https://www.inaturalist.org/observations/277183741
    7b.https://www.inaturalist.org/observations/276827427
    7c.https://www.inaturalist.org/observations/276154686
    7d.https://www.inaturalist.org/observations/275795041
    7e.https://www.inaturalist.org/observations/275752552
    7f.https://www.inaturalist.org/observations/275592512
    7g.https://www.inaturalist.org/observations/275592507 - Correction: Oreolyce archena.

    They all should be Udara dilecta.

    The Udara species are divided into two main group based on the presence or absent of the submarginal lunulate line/spots.
    Udara dilecta belongs to the group with submaarginal lunules.
    They include U. dilecta, placidula, rona, cyma and similar species as celastrina lavendularis, and Callenya lenya.
    UdaraP.png
    Udara dilecta is unique in that HW postdiscal spot 7 is no darker than the rest of the postdiscal spots on both wings.
    In all other species, HW spot 7 is darker than the other postdiscal spots & often black.

    Udara dlecta.
    HW spot 7 no darker than the other postdiscal spots.
    https://www.gbif.org/occurrence/2847201825
    https://www.gbif.org/occurrence/2847200139
    https://wingscales.com/Lycaenidae/Udara-dilecta-dilecta


    Udara rona. All spots light brownish Male upperside deeper blue.
    https://www.gbif.org/occurrence/2847201863

    U. placidula,
    Ground greyer. HW spot 7 dark.
    https://www.gbif.org/occurrence/2847202355
    https://www.inaturalist.org/observations/214331294

    U. cyma.
    HW spot 7 large, black , the rest light brownish.
    https://www.gbif.org/occurrence/2847200158

    Callenya lenya.
    Similar to U. cyma with spot 7 black, ground white.
    https://www.gbif.org/occurrence/2847200102


    Celastrina lavendularis.
    Can be very similar to U. placidula.
    Darker brownish grey ground with strong white halos and stronger spots.
    HW submarginal line often more serrate.
    Male upperside with broader diffuse dark borders.
    https://www.gbif.org/occurrence/2847199548
    https://www.gbif.org/occurrence/4177487516
    https://wingscales.com/Lycaenidae/Ce...laris-isabella
    Last edited by Psyche; 03-May-2025 at 10:50 PM.

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