Results 1 to 5 of 5

Thread: Ypthima need confirmation

  1. #1
    Join Date
    Apr 2016
    Location
    Sivasagar
    Posts
    47

    Default Ypthima need confirmation

    Dear Dr. Seow
    My friend need confirmation regarding id of these Ypthima. His two suspect are - Ypthima watsoni and Ypthima lycus...

    1. 20190811_161404.jpg

    20190811_161430.jpg

    2. 20190811_161459.jpg

    Thank you in advance
    Last edited by Saffron; 11-Aug-2019 at 09:17 PM.

  2. #2
    Join Date
    Nov 2010
    Location
    Malaysia
    Posts
    5,208

    Default

    This gets way too difficult.

    2. I have no idea .

    3 is Ypthima lycus.

    There is a white fascia which runs roughly from the outer margin of spot 6 to the inside of spot 2.
    See. fig 9 & 10 Plate XXXII & pl. XXXIII which shows the upper & undersides .
    https://archive.org/stream/mitteilun.../n595/mode/2up
    http://tolweb.org/tree/ToLimages/258...f39_o.250a.jpg

    1 could be Y. watsoni.
    The joined ocelli form a closed loop like a racing track, probably giving it its vernacular name.
    However the typical Y watsoni looks a bit different.

    Fig2.
    https://archive.org/stream/journalof.../n226/mode/1up
    Fig 4.
    https://archive.org/stream/lepidopte.../n188/mode/1up

    Page 34 fig 7 no. 7 & 8.
    http://www.kmnh.jp/wp-content/themes...nastyrskii.pdf

    Y. watsoni from peninsular Thailand.
    http://www.samuibutterflies.com/02_i...iwatsoni.v.jpg

    TL Seow: Cheers.

  3. #3
    Join Date
    Apr 2016
    Location
    Sivasagar
    Posts
    47

    Default

    Thank you for the insight sir...the first two images are of the same individual (one with open wing)...

  4. #4
    Join Date
    Nov 2010
    Location
    Malaysia
    Posts
    5,208

    Default

    Quote Originally Posted by Saffron View Post
    Thank you for the insight sir...the first two images are of the same individual (one with open wing)...
    Yes I should have seen the number.

    I just managed to figure out Evans' description of the Ypthima.
    The pages in the online book have been misplaced ie page 75 is followed by page 77 & then page 76 then page 78 so I could not follow the sequence.

    Y. watsoni ;UnF discal fascia forms a loop under the the ocellus thus not visible at rest; wsf with very large ocelli ;striations coarse.

    Y. asterope; ocelli in wsf small ;striation fine ;UnF also have a loop.

    Y. inica; UnF no loop; no prominent submarginal fascia; UnH apical & tornal ocelli not in line .ocellus 2 sifted out.

    Y.lycus; UnH apical & tornal ocelli in line. striation obsolete in Y. lycus lycus.

    Y. nareda; UnH apical & tornal ocelli in line UnF submarginal fascia prominent; UnH apical ocellus not much bigger than the rest.

    Y. newara; UnH ocelli in line; apical ocellus much larger than the rest;striation coarser; UnF submarginal fascia not widening at tornus.
    Last edited by Psyche; 12-Aug-2019 at 11:33 PM.

  5. #5
    Join Date
    Nov 2010
    Location
    Malaysia
    Posts
    5,208

    Default

    Based on Evans' description some adjustments need to be made.

    In Y. watsoni the loop under the FW ocellus can also be seen on the upperside as in the article page 34
    The HW ocelli are nearly in line.
    http://www.kmnh.jp/wp-content/themes...nastyrskii.pdf
    Also Evan states coarse striations & very large ocelli in wsf.

    1 meet all the crteria for Y. watsoni ;Loop under FW ocellus; HW ocelli nearly in line; coarse striations; large wsf ocelli.


    2.could also be a form of Y. watsoni but it look more like Y. lycus.
    The HW ocelli are more or less in line ;the straiton is variable depending on ssp.The whiter diffuse fasciation suggest Y. lycus.


    Evans' statement that the HW apical & tornal ocelli are in line for Y. nareda /newara & out of line for Y. inica are rather confusing.
    I have pick out examples which suit the description except for the ocelli alignment.

    Y. nareda ;FW with submarginal fascia increasing in width at tornus; HW apical ocellus moderately bigger than ocellus 2.
    https://www.ifoundbutterflies.org/me...eb56c0b7-1.jpg

    Y. newara;FW submarginal fascia of uniform width; HW apical ocellus much bigger.
    https://www.ifoundbutterflies.org/me...ekar_aj717.jpg

    Y. inica; FW without submarginal fascia.
    https://www.ifoundbutterflies.org/me...cc34893f-1.jpg


    TL Seow: Cheers.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Join us