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Thread: Id help please

  1. #1
    Join Date
    Jun 2020
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    Tripura, North Eastern India
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    Default Id help please

    Good morning Dr. Seow Sir
    These all Theretra sp. Sighted in Tripura...
    Need your guidance
    Thank you in advance...

    1. Theretra clotho/tibetiana?

    Theretra 1.jpg

    2. Theretra clotho/tibetiana?

    Theretra 2.jpg

    3. Theretra boisduvalii?

    Theretra 3.jpg

    4. Theretra clotho?

    Theretra 4.jpg

    5. Theretra clotho?

    Theretra 5.jpg

    6. Theretra lucasii/ latreillii?

    Theretra 6.jpg

    7. Theretra clotho?

    Theretra 7.jpg

    8. Theretra clotho?

    Theretra 8.jpg

    9. Theretra lucasii/ latreillii?

    Theretra 10.jpg

    10. Theretra lucasii/ latreillii?

    Theretra 11.jpg

    11. Theretra?

    Theretra 12.jpg

    12. Theretra clotho?

    Theretra 13.jpg

    13.Theretra boisduvalii?

    Theretra 14.jpg

    14. Theretra clotho?

    Theretra 15.jpg

    Theretra 15a.jpg

    15. Theretra lucasii/ latreillii?

    Theretra 16.jpg

    Theretra 16a.jpg

  2. #2
    Join Date
    Nov 2010
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    Malaysia
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    Theretra clotho & tibetiana.

    It is not possible to differentiate between the two as they are practically identical.

    The distribution of the two are slightly different & as far as I can see T. tibetiana has not been recorded in India.

    https://tpittaway.tripod.com/china/t_clo.htm
    T. clotho is found in Thailand but not T. tibetiana.
    https://en.wikipedia.org/wiki/File:T...ark_female.jpg


    https://tpittaway.tripod.com/china/t_tib.htm
    T. tibetiana is found in Taiwan but not T. clotho.
    https://species.wikimedia.org/wiki/T...513811706).jpg

  3. #3
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    Theretra lucasii & latreillii.

    T. lucasii was formerly treated as a subspecies of T. latreillii.

    T. lucasii is oriental while T. latreillii is Australasian.

    T. lucasii. Wings triangular with straight margins, like a jet fighter.
    FW with extra submarginal lines beyond the dotted postmedial visible.
    https://tpittaway.tripod.com/china/t_luc.htm

    T. latreillii.
    FW margin more convex & submarginal lines not visible.
    http://lepidoptera.butterflyhouse.co...atreillii.html

  4. #4
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    Theretra boisduvalii & T. sumatrensis.


    Two species were formerly confused as one.
    Both have the postmedial running from the apex marked out by dots on the veins.

    T. boisduvalii.
    Upperside greenish brown.
    https://www.flickr.com/photos/hkmoths/2921757996/
    https://eol.org/pages/638030


    T. sumatrensis.
    Upperside brown with a darker shading medially..
    https://en.wikipedia.org/wiki/Theret...tji_Valley.jpg
    Last edited by Psyche; 10-Jun-2021 at 07:13 AM.

  5. #5
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    1, 2, 4 & 5.
    Theretra clotho.

    3. Theretra boisduvalii.

  6. #6
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    6, 9, 10.
    Theretra lucasii.

    7 & 8.
    T. clotho.

  7. #7
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    11 & 15.
    Theretra lucasii.

    12, 13, & 14.
    Theretra clotho



    TL Seow: Cheers.

  8. #8
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    I see from the Sphingidae series that T. tibetiana have been reported from Bhutan & Manipur.

    They are practically identical.
    Perhaps the pale line inner to the postmedial running from the apex is better defined in T. clotho.
    http://sphingidae.myspecies.info/taxonomy/term/5200
    http://sphingidae.myspecies.info/taxonomy/term/2805

    2 & 4 where this line is very weak might be possible T. tibetiana.


    TL Seow: Cheers.

  9. #9
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    Default

    Thank you so much sir...

  10. #10
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    13 is also probably T. tibetiana since the pale line adjacent to the dark postmedial is practically obsolete.


    Other confirmed examples of T. tibetiana & clotho.

    T. tibetiana.
    http://dearlep.tw/species.html?namec...07c69ace4c2da8

    T. clotho. P. Malaysia & Singapore.
    https://www.flickr.com/photos/gancw1/22793159381/
    https://inaturalist-open-data.s3.ama...jpg?1545575529



    TL Seow; Cheers.
    Last edited by Psyche; 13-Jun-2021 at 02:34 PM.

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