Superficially the undersides ressemble that of J. celeno but on the uppersides, the FW has a much more intense blue towards the apex and periphery of the wing. The black FW margin is a thread but can be a confusing factor as the cilia are also black, giving a broader impression of the black area. Decidedly a forest insect compared to the much more widespread J. celeno. A possible ID key in the field would be the rather scalloped FW postdical band's outer margin (Thanks Dr Seow). In J. celeno, this is almost always a straight line. (see comparisons on the pix below)
J. celeno male
Habitat indicator
RSP
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WV
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PG
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VF
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FTR
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SC
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LWDF
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LWPF
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LMEF
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UMN
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MN
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x
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x
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x
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Frequency observation chart: (S marks the usual
occurences, H marks an unusually high occurence, F for first record)
2014
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2015
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Nov
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Dec
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Jan
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Feb
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Mac
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Apr
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May
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June
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Jul
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Aug
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Sep
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Oct
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Nov
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Dec
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S1(F)
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S4
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S4
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2016
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Jan
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Feb
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Mac
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Apr
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May
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Jun
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Jul
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Aug
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Sep
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Oct
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Nov
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Dec
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S1S4
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S2
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11:11 (Notice the black FW margin which is a thread)
11:17
Above photos 11 April 2015
Above photos of a male: (S4) 04 Oct 2015 @ 10:08
Above a male 05 June 2016 @ 13:56
Consult the male voucher specimen from Site 4: http://nlliew66butterflies2.blogspot.my/2015/11/jamides-zebra-h-h-druce-1895-lakatti.html
For J. zebra, beside the slightly deeper chalky blue upperside and the slightly broader FW black border which increases at the apex (Corbet 1940). The important point to separate it from J. celeno is the UnHW white discal stripes in spaces 6 and 7 moved out of line with those in spaces 4 and 5 (Riley & Corbet, 1938). The different of the male clasper of the two species confirm the differences.
ReplyDeleteReferences;
1.Corbet, A. S. (1940). Observation on species of Lycaenidae from the Malay Peninsula (Lepidoptera: Rhopalocera). Proc. Royal Entom. Soc. London series B, vol.9 (1): 1-6.
2.Riley N.D. & A. S. Corbet (1938). A revision of the Malayan species of Jamides Hübner (Lepidoptera: Lycaenidae). Trans. Royal Entom. Soc. London (part 5) vol.87: 147-159.
For J. zebra, based on external morphology, beside the slight deeper chalky blue upperside and the slightly broader border which increases at the apex on UpFW which different from J. celeno (Corbet, 1940). Riley and Corbet (1938) pointed out the UnHW white discal stripes in spaces 6 & 7 moved out of line with those in spaces 4 & 5.
ReplyDeleteReferences:
1.Corbet, A. S. (1940). Observations on species of Lycaenodae from the Malay Peninsula (Lepid., Rhop.). Proceedings of the Royal Entomological Society of London series B, vol.9 (1), 1-6.
2.Riley, N.D. & A. S. Corbet (1938). A revision of the Malayan species of Jamides Hübner (Lepidoptera: Lycaenidae) Transactions of the Royal Entomological Society of London, vol.87 (5): 147-159.
Teo T P