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Thread: An interesting Drupadia from Khao Luang (Nakhon Si Thammarat, peninsular Thailand)

  1. #1
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    Default An interesting Drupadia from Khao Luang (Nakhon Si Thammarat, peninsular Thailand)








    As you can see looks like a Drupadia theda, but with slight differences, like a darker underside apical area, tail completely black with only white tips and the very small size compared with a normal theda.

    Just a dwarf theda? Some clue make me think about Drupadia niasica scudderi or biranta, but not so much data available to be sure.

  2. #2
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    You do have Drupadia niasica.

    1st is the size difference .D. theda FW >14mm (C&P4) 17-20mm (Fleming). D. niasica 11.5-13 mm (C&P4) , 12-14mm (Fleming)

    2nd Doherty described the type specimen of scudderi which he states the tail is chiefly black except at the tip; underside much as in thesmia (D. theda).
    https://archive.org/stream/JournalAs...e/426/mode/1up

    3rd. IN C&P4 page 303 the key states the female niasica has the underside apical area browner than theda .


    Your 2nd pic is obviously a female, & so has to be D. niasica.


    I presume from the location it is ssp. biranta.


    TL Seow: Cheers.

  3. #3
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    Thank you, Dr. Slow! How do you ID as a female?

    BTW first and second pictures are the same specimen

  4. #4
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    Quote Originally Posted by Angiud View Post
    Thank you, Dr. Seow! How do you ID as a female?

    BTW first and second pictures are the same specimen
    Can be quite tough to ID gender in field shots because of perspective distortion.

    Male :FW outer (distal) margin straight ; palpi a bit shorter , the upper black portion & the lower white portion of about the same length.
    http://www.butterflycircle.com/check...1%20270508.jpg
    https://besgroup.org/wp-content/uploads/Dark-Posy.jpg
    https://1.bp.blogspot.com/_yzw2AzY2d...ark+Posy+2.jpg

    Female: FW outer margin partly rounded; Palpi longer, the black portion longer than the lower white portion.
    https://wanderingbutterflyeffect.fil...eea567860c.jpg
    https://i.pinimg.com/originals/0b/59...83d30f39fa.jpg
    http://www.butterflycircle.com/check...P_adult_04.jpg


    TL Seow: Cheers.

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