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Thread: ID confirmation of Sesseria sp.

  1. #1
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    Default ID confirmation of Sesseria sp.

    Dear Dr. Seow sir,

    I believe what I got here are two species of Seseria found in India. Please guide me about their identification.


    1. Seseria dohertyi?

    DSC_0363 (2).jpg



    2. Seseria sambara.

    DSC_0578 (2).jpg



    3. Probabale ID: Seseria sambara / Seseria dohertyi?

    893885ad-136a-4ed5-a32f-f0cf7dcd6a87.jpg



    4. Probable ID: Seseria sambara.

    658bee0f-0fb7-4536-a5d6-7243d83b4b07.jpg



    Thank you in advance.

    Cheers
    Last edited by Saffron; 23-May-2021 at 03:35 PM.

  2. #2
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    Default

    Despite there being only two species they are very confusingly similar at times.
    It is necessary to check if they are dsf or wsf.


    Wsf form with the white patch/spot in FW space 1a ie right on the lower magin (dorsum) obsolete or faint.
    UpH white band narrower in wsf.

    S. dohertyi
    FW spot 1b typically not notched on the outer margin but with step.
    HW white band wide in dsf outer border roundly angled in the middle; upper end white area at least > 1.5 width of the outer black spot.
    https://www.ifoundbutterflies.org/me...11/a-28776.jpg
    https://www.ifoundbutterflies.org/me...11/a-28778.jpg
    https://www.ifoundbutterflies.org/me...eena_ag382.jpg
    https://www.ifoundbutterflies.org/me...3606f411-1.jpg

    Wsf form narrower HW band but band is wider than wsf sambara. Note FW spot 1b is notched.
    https://www.ifoundbutterflies.org/me...a7aee117-1.jpg


    S. sanbara.
    FW spot 1b typically narrow & notched.
    HW white band of more uniform width in dsf upperend white are a about equal width of black spot.
    https://www.ifoundbutterflies.org/me...11/a-28782.jpg
    https://www.ifoundbutterflies.org/me...09419910-2.jpg
    https://www.ifoundbutterflies.org/me...ec083139-1.jpg

    Wsf form with narrower HW white band, Upper end of white band narrower than the black spot.
    https://www.ifoundbutterflies.org/me...11/a-28781.jpg
    https://www.ifoundbutterflies.org/me..._7/a-28751.jpg


    1 is S. dohertyi.

    2, 3, & 4 are S. sambara.


    TL Seow: Cheers.

  3. #3
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    Default

    Thank you so much sir. But it is very difficult to id for some invididuals. Like the below one. I am not able to figure out whether it is dohertyi or sambara. However I am more confident about this to be sambara.

    5.

    b67aa8da-2d62-4456-a40b-860eae8544f5.jpg


    6. Any ID for this one.

    DSC_1358.jpg


    Cheers

  4. #4
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    Post 3.

    5 is another Seseria sambara.

    The problem is with 1 actually.
    Is 1 wsf S. dohertyi or colud it be dsf S. sambara.


    6 is female (note abdominal end) Parnara bada.
    The spots are as in Parnara & the antenna is short with a thick club.
    The presence of HW spot 6 should exclude P. ganga.
    P. bada.
    https://www.ifoundbutterflies.org/me...119c8e50-1.jpg



    I am trying to make some sense of Seseria but it is rather tough.
    There are a lot of coflicting images.

    Examples.

    Taken at Alipurduar northern West Bengal in April ? dry season . Should this be S. dohertyi.
    https://biodiversityofwestbengal.wil...ambara#gallery

    Taken in Sikkim July ? wet season. Should this be wsf S. dohertyi.
    https://commons.wikimedia.org/wiki/F...B_DSC_9023.jpg

    Taken in Arunachal Pradesh september ? dry season. This would be correct for S. sambara.
    https://commons.wikimedia.org/wiki/F...eria_Q7361.jpg


    TL Seow: Cheers.

  5. #5
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    Evans, 1949 provides description of the two species. But unfortunately he did not mention about the variation in the DSF S. sambara.

    Evans quoted:

    Seseria dohertyi: Abdomen above white corresponding with the hindwing band, base and tip brown. Uph white area broader than in sambara and unh the discal spots are separated
    from the dark border, particularly in the DSF. Upf the spot in space ib connected to the dorsum by a white area wider than the spot.

    Seseria sambara: Abdomen centrally white, as in dohertyi, but in female tends to be striped. In WSF the white area uph is somewhat sullied and narrower than in dohertyi. Upf the white spot in space ib is narrower and outwardly excavate: the connecting white bar to the dorsum is obscure in the WSF.


    1 seems to qualify the characters for dohertyi mentioned by Evans.

    However I also find some images that perhaps be S. dohertyi (probably/or DSF sambara as you mentioned).

    https://www.ifoundbutterflies.org/me...2e3abce8-1.jpg
    https://www.ifoundbutterflies.org/me...3764d007-1.jpg

    Indeed they are quite difficult.

    Always best to check specimen:

    https://www.ifoundbutterflies.org/me...11/a-28776.jpg
    https://www.ifoundbutterflies.org/me...11/a-28782.jpg

    Cheers
    Last edited by Saffron; 23-May-2021 at 11:08 PM.

  6. #6
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    Perhaps under keys will be a better option may be looking at those specimen images?

    S. dohertyi
    unh discal spots are separated from the dark border (Evans, 1949)?
    https://www.ifoundbutterflies.org/me...11/a-28777.jpg


    S. sambara
    Unh discal spots are more close to the dark border?
    https://www.ifoundbutterflies.org/me...11/a-28780.jpg

    Cheers

  7. #7
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    I did went thru both of Evans' description in his catalogue & his Identification of Indian Butterflies, but his description is incomplete.

    Your 2, 3, 4, & 5 are definitely S. sambara.
    There is a bit of doubt with no 1 but S. dohertyi is the likelier choice.


    TL Seow: Cheers.

  8. #8
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    Thank you so much for the help and discussion sir. It would help me in my future expeditions.

    Cheers

  9. #9
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  10. #10
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    To reiterate.

    Seseria sambara.
    HW outer brown zone much wider than the white band in both wsf & dsf.
    HW the two black spots in space 7 set close together so that white area is about one spot width.
    FW with weaker white streak in space 1a in dsf, nearly obsolete in wsf.


    Seseria dohertyi.
    HW outer brown zone less wide than the white band in dsf, about equal in wsf.
    HW twin black spot in space 7 set farther apart so the white area is about 1.5 to 2. 5 spot width.
    FW with strong white streak in space 1a in dsf, less defined in wsf.


    YL Seow: Cheers.

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