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Thread: Line Blue ID request

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  1. #2
    Join Date
    Nov 2010
    Location
    Malaysia
    Posts
    7,451

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    It is male Ionolyce helicon. Correction; Male Nacaduba beroe.

    These two can be quite confusing at times in fieldshots.

    To be I. helicon two criteria together necessary.
    FW postdiscal band is fully dislocated (sometimes not at vein 6)+ HW submarginal spots 3, 4, & 5 sharp-pointed (sometimes only 3 & 4.).
    Added Observation (Courtesy of Jian Kai) HW postdiscal band always intact in space 4 & 5, but broken in N. beroe.
    Males.
    https://1.bp.blogspot.com/-HkzcUPgNd...eBlue-KSK3.jpg
    https://inaturalist-open-data.s3.ama...9885/large.jpg
    https://inaturalist-open-data.s3.ama...580/large.jpeg
    Females.
    https://inaturalist-open-data.s3.ama...5861/large.jpg
    https://inaturalist-open-data.s3.ama...141/large.jpeg
    https://inaturalist-open-data.s3.ama...0782/large.jpg


    Nacaduba beroe.
    FW postdiscal band typically only a mid-dislocation at vein 5 ,but occasionally somewhat like Ionolyce.
    HW submarginal spots 3, 4, & 5 lunulate in particular spot 3 is never pointed.
    Males.
    http://www.butterflycircle.com/check...ixLineBlue.jpg
    http://www.butterflycircle.com/check...an-Soong2b.jpg
    https://inaturalist-open-data.s3.ama...2903/large.jpg
    Females.
    https://inaturalist-open-data.s3.ama...1365/large.jpg
    https://inaturalist-open-data.s3.ama...181/large.jpeg
    Female below.
    https://inaturalist-open-data.s3.ama...3784/large.jpg
    Variant.
    This female is N. beroe from the FW postdiscal band, but HW submarginal spots a bit sharp.
    https://static.inaturalist.org/photo...7/original.jpg

    N, berenice often have the HW submarginal spots sharp-pointed.
    Male & female.
    https://inaturalist-open-data.s3.ama...9538/large.jpg
    https://inaturalist-open-data.s3.ama...2291/large.jpg

    This which looks like I. helicon should be N. beroe.
    http://4.bp.blogspot.com/-H03HQ8Y2p8...2B-%2B0609.jpg


    TL Seow : Cheers.
    Last edited by Psyche; 30-Oct-2022 at 06:24 PM.

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