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Thread: Nacaduba berenice?

  1. #1
    Join Date
    Apr 2014
    Location
    Singapore
    Posts
    177

    Default Nacaduba berenice?

    Is this a Nacaduba berenice? The N.berenice had not been recorded in my Habitat before. Only the N.calauria and N.kurava had been recorded previously.
    Nacaduba 20210619.jpg

  2. #2
    Join Date
    Nov 2010
    Location
    Malaysia
    Posts
    6,006

    Default

    It is Prosotas, probably Prosotas nora.

    Prosotas (except P. aluta) lacks the costal spot above the cellend bar. ( Sometimes a vestigial dot is present.) Also lowest spot of the FW postdiscal band is usually shifted in ; peripheral spots not marked in white (except P. aluta.).


    However there is a very strong suggestion this is Prosotas pia pia.

    Typical P. nora have the submarginal & marginal marks or spots equally dark or at least the submarginal spots are darker.Best compare on the HW.
    There are very good examples of this species in Singapore.
    Males.
    http://www.butterflycircle.com/check...imon%20Sng.jpg
    https://www.singapore.biodiversity.o...b8b1072e29.jpg
    http://www.butterflycircle.com/check...imon%20Sng.jpg
    http://www.butterflycircle.com/check...2%20080309.jpg
    http://www.butterflycircle.com/check...-Blue---JZ.jpg
    https://1.bp.blogspot.com/-GdZarvZ5T...lue-LemonT.jpg

    Male India.
    https://www.flickr.com/photos/ivijay...n/photostream/
    https://www.flickr.com/photos/ivijay...n/photostream/

    The female is more orangey. Singapore.
    http://1.bp.blogspot.com/_0EK80AsaR7...ine%2BBlue.jpg



    Prosotas pia pia. Commoner in the hills in P. Malaysia.
    Male upperside more slate blue vs. purple in P. nora male.
    Submarginal spots faded out especially on the HW.
    Males.
    India.
    https://www.flickr.com/photos/maanay/37566391576
    Thailand
    http://4.bp.blogspot.com/-XDY_8ktvVv...+marginata.jpg
    https://1.bp.blogspot.com/-Eds5-L78I...-marginata.jpg
    Sulawesi.
    https://en.wikipedia.org/wiki/Prosot...tiMUpUnAC1.jpg

    Brunei. Male P. pia pia.
    https://species.wikimedia.org/wiki/P...iaMUpUnAC1.jpg


    Females.Thailand.
    http://www.samuibutterflies.com/inse...spiamarginata/
    https://encrypted-tbn0.gstatic.com/i...0rlMA&usqp=CAU


    This male does not look the same as the typical males nora from Singapore.

    Furthermore, a mating pair taken years ago in Singapore have the orange female with the HW submarginal spots faded off much as in the female P. pia.
    https://farm6.staticflickr.com/5089/...2cf711da_z.jpg



    TL Seow: Cheers.
    PS. Nacaduba berenice icena males for comparison.
    Note FW postdiscal band's lowest spot not shifted in; marginal & submarginal spots strongly defined by white striae ; three costal spots.
    https://2.bp.blogspot.com/-ceLml99O5...u/DSC_0187.JPG
    http://www.butterflycircle.com/check...obby%20Mun.jpg
    http://1.bp.blogspot.com/-xFQx2YUBf8...nice+icena.jpg

    Prosotas aluta.
    https://2.bp.blogspot.com/-L8WI9UKft...aluta-KSK4.jpg
    Last edited by Psyche; 18-Sep-2021 at 07:51 AM.

  3. #3
    Join Date
    Nov 2010
    Location
    Malaysia
    Posts
    6,006

    Default

    It is highly probable that Prosotas pia pia occur in Singapore.


    Here is another male from Singapore.
    On the HW the dark marginal line angled out in a 'V' at vein 2 (just below the black spot) indicating where the tail is broken off.
    The submarginal & marginal spots are much faded.
    https://inaturalist-open-data.s3.ama...jpg?1631959024


    Both your male & this male have the black markings much reduced, so this is not a one off aberration.
    Both are very similar to this male from Brunei.
    https://species.wikimedia.org/wiki/P...iaMUpUnAC1.jpg


    In contrast P. nora male have the black markings strongly developed giving it a different look.
    http://www.butterflycircle.com/check...erry%20Ong.jpg


    Probable female Prosotas pia, Singapore.
    https://inaturalist-open-data.s3.ama...jpg?1613368451

    TL Seow: Cheers.
    Last edited by Psyche; 22-Sep-2021 at 06:55 AM.

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