Horaga chalcedonyx malaya  Corbet, 1941

Horaga chalcedonyx malaya ♂ Up. Horaga chalcedonyx malaya ♂ Un. Horaga chalcedonyx malaya ♂ genitalia Horaga chalcedonyx malaya ♂ genitalia
♂, 2014.06.27. Surat Thani (Koh Samui), Thailand. ♂ genitalia, Surat Thani (Koh Samui), Thailand.

ON : Horaga albimacula malaya Corbet, 1941
OD : Proc. R. ent. Soc. Lond. (B)10(3):48-49.
TL : Singapore. (♂, NHML)
Distribution : Thailand (Koh Samui), Singapore.
[? Langkawi]
Horaga chalcedonyx malaya map

Type Materials Information

Holotype ♂, 04.Apr.1936, Singapore. J.N.Eliot (NHML, photo examined.)
Allotype ♀, 11.Dec.1937, Blakang Mati, Singapore. J.N.Eliot (NHML) ; Eliot,1992 : pl.61, fig.19,♀.


Records taken from Literature

[ THAILAND ]
Horaga chalcedonyx malaya ; Les Day,2014-2022 : Samui Butterflies, fig.[♂](Un). (Koh Samui) (accessed: 2022.07.30)
'Horaga albimacula ssp? ; Les Day,2014-2022 : Samui Butterflies, fig.[♂](Un). (Koh Phangan) (accessed: 2022.07.30)'
Horaga chalcedonyx ssp. ; Saito & Inayoshi,2018 : 35, figs.79,♂,♂(Un). (Koh Samui)


Specimens Examined

[ THAILAND ]
Surat Thani : Koh Samui dist., 2014.06.27. 1♂, L.Day (YI)
JanFebMarAprMayJun JulAugSepOctNovDec


Notes

The species was found by Les Day on 27.Jun.2014 in Koh Samui and this is the only known specimen in Thailand. The upperside is the same as ssp.malaya, but the discal band on the UnH is outwardly wide greenish silvery-edged and darker ground colour. I tentatively treat it as ssp.malaya, but further taxonomic study is needed.
There are some other photo records from Koh Phangan as 'Horaga albimacula ssp.?'. However, these are likely to be this taxon. The species can only be distinguished from Horaga albimacula by an examination of the male genitalia. Further taxonomic and distributional studies with specimens are needed.


Literature

Corbet, A.S.,1941 : A Revision of the Malayan Species of Horaga Moore. (Lepidoptera: Lycaenidae)
Proc. R. ent. Soc. Lond. (B)10(3):46-50.

Eliot, J.N.,1992 : In Corbet & Pendlebury. The Butterflies of the Malay Peninsula, edn. 4.
Malayan Nature Society, Kuala Lumpur.

Eliot, J.N.,1986 : The Horaga albimacula Complex (Lepidoptera, Lycaenidae)
Trans. lepid. Soc. Japan 36(3):107-111.


Horaga chalcedonyx ssp. ♂
♂, Surat Thani (Koh Samui), Thailand. (photo by L.Day)

2019.12.31 - 2023.09.30.

A Check list of Butterflies in Indo-China, Chiefly from THAILAND, LAOS & VIETNAM. Copyright © 1996- Y.Inayoshi.