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Thread: ID requested for Lycaenidae

  1. #1
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    Default ID requested for Lycaenidae

    Dear Sir/Madam,

    Greetings from India!!!

    I am sending some Lycaenidae families specimen for identification purpose. All specimens captured (Pop-up flash used) from Buxa Tiger reserve (North east), West Bengal, India in the month of January 2019. I also request for id guidance about Celastrina luvendularies, Udara dilecta, Celastrina argiolus and Celastrina gigas.


    Regards,
    Rajib Dey
    Mob.: +91-9831632692
    Email: rajibdey88@gmail.com
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  2. #2
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    These are very difficult.
    The distinction between Celastrina & Udara is based on the male genitalia.
    Their markings are practically identical.

    Udara dilecta ;Underside pale with submarginal lunules. Spots without white halos; HW postdiscal spot 1b always a lunule (crescent) often postdiscal spot 1a (in space 1a)is also lunulate.
    HW postdiscal spots not darker than the rest of the postdiscal spots below it.
    https://www.thaibutterflies.com/proj...udara-dilecta/


    Celastrina; All species with submarginal lunules.
    HW spot 1b typically broken into two separate spots ; Often spots have white halos.

    C. lavendularis ;Un. darksi grey ;spots with strong white halos.
    Spots typically large ;HW spot 1b sometimes conjoined as a lunule; postdiscal spot 7 large & dark; postdiscal spots 2, 3, 4, 5, & 6 complete, more nearly in line.
    http://www.ifoundbutterflies.org/#!/...a-lavendularis
    http://a4.pbase.com/g3/98/670198/2/9...6.q39gBl9V.jpg


    C. gigas. Un pale . white halos weak; Postdiscal spots small imcomplete; spot 3 small often absent; spot 2 set deeper, so more out of line.
    http://www.ifoundbutterflies.org/sp/...lastrina-gigas


    C. huegelii ;Un pale grey with complete set of spots of similar size & blackness, halos weak, spots more nearly in line (as in C. lavendularis).
    https://en.wikipedia.org/wiki/Celast...sMFUpUnAC1.jpg


    C. argiolus; Un. whitish with very small spots complete, no halo, postdiscal spots more out of line (spot 2 set deep) as in C. argiolus.
    http://www.ifoundbutterflies.org/sp/...trina-argiolus
    Last edited by Psyche; 27-Mar-2019 at 10:06 PM.

  3. #3
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    1. Likely C. lavendularis ;relative darker, with larger spots & halos. HW postdiscal spot 7 larger & somewhat darker; spots 1b, 2, 3, 4 & 5 more nearly in line.

    2. C. gigas; HW spot incomplete ,ostdiscal spot 2 faint,obsolete & spot 3 missing.

    3. Probaly C. gigas; HW spots poor . spot 2 weak & spot 3 nearly obsolete.

    TL Seow: Cheers.
    Last edited by Psyche; 27-Mar-2019 at 10:08 PM.

  4. #4
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    Dear Seow Sir,
    You have menioned C. huegelii ;Un pale grey with complete set of spots of similar size & blackness, halos weak, spots more nearly in line (as in C. lavendularis). Let us the meaning of halos weak

    Regards,
    Rajib Dey

  5. #5
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    Quote Originally Posted by butterflyrajib View Post
    Dear Seow Sir,
    You have menioned C. huegelii ;Un pale grey with complete set of spots of similar size & blackness, halos weak, spots more nearly in line (as in C. lavendularis). Let us the meaning of halos weak

    Regards,
    Rajib Dey

    What I meant is that the white rings around the black spots is weak or poorly seen in C. huegelii.
    https://en.wikipedia.org/wiki/Celast...sMFUpUnAC1.jpg
    https://www.ifoundbutterflies.org/me...5248938d-1.jpg
    https://www.ifoundbutterflies.org/me...b90e3c38-1.jpg

    Evans' description C huegelii : Markings small & regular. UnF never a discal spot in 1. ( Not applicable .What he meant is never a postdiscal spot in space 1b in comparing with Udara cardia.)
    Spots in space 2 - 5 on an even flat arc.

    TL Seow: Cheers.

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