Page 1 of 7 123 ... LastLast
Results 1 to 10 of 65

Thread: Arhopala Collection for ID

  1. #1
    Join Date
    May 2004
    Location
    Singapore
    Posts
    15,615

    Default Arhopala Collection for ID

    Since we are now fortunate enough to have an expert in IDs with us, i.e. Psyche (Seow TL), we should post whatever Arhopala here so that Seow can help us nail the IDs of these lookalikes.

    Please state where you shot it, so that we can also narrow down locations and the species for future references.

    So start posting your "brown lookalikes" here!
    Khew SK
    Butterflies of Singapore BLOG
    Try not. Do, or do not. There is no try

  2. #2
    Join Date
    Sep 2006
    Location
    Malaysia
    Posts
    2,759

    Default

    I post first. Taken in Bukit Cahaya, upperside is blue.


  3. #3
    Join Date
    Nov 2010
    Location
    Malaysia
    Posts
    5,228

    Default

    Arhopala inornata inornata male

    Most important clue; hindwing rounded & without green tornal scales.
    Forewing : posdiscal spot 4(2nd lowest in pic) not dislocated.
    Hindwing : Postdiscal spot in space 6 is almost under spot 7, and roughly between spot 5 and cellend bar; complete dislocation of the postdiscal band at vein 2 (marked by a small tooth at the margin).
    TL Seow

    PS: Btc, Lc, no need to upload the Curetis topside as it is quite impossible to confirm ID based on that.

  4. #4
    Join Date
    Sep 2006
    Location
    Malaysia
    Posts
    2,759

    Default

    Seow, noted and many thanks.

    Quote Originally Posted by Psyche View Post
    Arhopala inornata inornata male

    Most important clue; hindwing rounded & without green tornal scales.
    Forewing : posdiscal spot 4(2nd lowest in pic) not dislocated.
    Hindwing : Postdiscal spot in space 6 is almost under spot 7, and roughly between spot 5 and cellend bar; complete dislocation of the postdiscal band at vein 2 (marked by a small tooth at the margin).
    TL Seow

    PS: Btc, Lc, no need to upload the Curetis topside as it is quite impossible to confirm ID based on that.

  5. #5
    Join Date
    May 2004
    Location
    Serangoon North
    Posts
    2,753

    Default

    Hi Seow, any ID suggestion for this one. Same spp but two different individual, size about 1/2" dia.

    Thanks in advance,
    Attached Images Attached Images
    Last edited by Cruiser; 30-Nov-2010 at 10:35 PM.
    Ben Jin

  6. #6
    Join Date
    Jun 2006
    Location
    Western Singapore
    Posts
    4,303

    Default

    Seow, you might want to look at this past thread (Arhopala Bin) which has quite a number of Arhopala shots awaiting ID suggestions.
    Horace

  7. #7
    Join Date
    Nov 2010
    Location
    Malaysia
    Posts
    5,228

    Default

    Quote Originally Posted by Cruiser View Post
    Hi Seow, any ID suggestion for this one, size about 1/2" dia.

    Thanks in advance,
    This is a toughie. Too many clues are missing from the underside of the forewing forcing one to check out the alternaatives. I have narrowed it down to A. metamuta, A. antimuta , A. muta, and A. moorei. Its dark colour and largish spots suggest A. moorei but the tornal green area dont match.

    Quote Originally Posted by horace2264 View Post
    Seow, you might want to look at this past thread (Arhopala Bin) which has quite a number of Arhopala shots awaiting ID suggestions.
    Thanks, I have a look later.

  8. #8
    Join Date
    Jun 2004
    Location
    Toa Payoh (Singapore)
    Posts
    4,411

    Default

    Shot this in Central Catchment Area, Singapore.
    I know it is quite worn out. Nevertheless, I hope Seow may be able to help.
    Attached Images Attached Images

  9. #9
    Join Date
    Nov 2010
    Location
    Malaysia
    Posts
    5,228

    Default

    Quote Originally Posted by Cruiser View Post
    Hi Seow, any ID suggestion for this one. Same spp but two different individual, size about 1/2" dia.

    Thanks in advance,
    Arhopala wildeyana top-female, bottom-should be male

    I finally managed to figured this one out. One of the great difficulty with Arhopala is that individual variation would render any textbook description inaccurate and what are perceived as stable features unreliable. In this case whether the postdiscal band on the forewing is whole, kinked, or dislocated is inmaterial. Another is the spot in space 6 on the hindwing; this may be fully or partially under spot 7, and likewise fully or partially astride the cellend and spot 5.
    The most noticeable feature is that the spots are rather large for the butterfly. Postdiscal spots 4 & 5 are fully conjoined or almost so. The 3 discal spots are large with the lowest in space 1 quadrate. The submarginal spots on the hindwing are either dome-shaped or pyramidal. Closest to Fleming's L236B Un. In the text, A. wildeyana is stated to be not uncommon in Singapore.

    TL Seow
    Last edited by Psyche; 06-Dec-2010 at 06:25 AM.

  10. #10
    Join Date
    Nov 2010
    Location
    Malaysia
    Posts
    5,228

    Default

    Quote Originally Posted by Peacock Royal View Post
    Shot this in Central Catchment Area, Singapore.
    I know it is quite worn out. Nevertheless, I hope Seow may be able to help.
    Arhopala agrata male

    Hindwing postdiscal spot 7 directly on top spot of spot 6, and a lobed tornal spot may indicate the cleander group. However, there is no spot in space 10 ie just above the cellend bar. Also there appear to be a long blackish line that runs from the inner margin of the tornus across the upper margin of the green scaling. See C&P4 41/25. Topside indicates male.

    I have realised that the tornal pattern is not unique and cannot be used for absolute identification. Thankfully, this one is readily IDed following C&P4's keys i.e. key 1, 7, 8, 95, 96, 100, 120, 124, 125 and thus A. agrata.
    Last edited by Psyche; 06-Dec-2010 at 05:43 AM.

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