Euthalia merta alboapicala  Monastyrskii, 2005

Euthalia merta merta ♂ Up. Euthalia merta merta ♂ Un. Euthalia merta merta ♀ Up. Euthalia merta merta ♀ Un.
♂, Lam Dong, Vietnam. (photo by K.Saito) ♀, Lam Dong, Vietnam. (photo by K.Saito)

Euthalia merta merta ♂ Up. Euthalia merta merta ♂ Un.
♂, 1983.03.28. Chanthaburi, Thailand.

ON : Euthalia eriphylae alboapicala Monastyrskii, 2005
OD : Atalanta 36(1/2):151-153, pl.7, figs.9(HT,♀),10(HT,♀Un) ;
pl.8, figs.1(PT,♂),2(PT,♂Un).
TL : Nghia Trung, Bu Dang, Binh Phuoc, S.Vietnam.
Distribution : C. & S.Vietnam.
● ssp.
ssp.[alboapicala ?]
Euthalia merta alboapicala map

Type Materials Information

Holotype, ♀, 27.Nov.2003. Nghia Trung forest, Bu Dang District, Binh Phuoc Province, S.Vietnam. A.L.Monastyrskii leg. (NHML)
Paratypes :
1♂, 18.May.2003. La Nga forest, Dinh Quan District, Dong Nai Province, S.Vietnam. A.L.Monastyrskii leg. (NHML)
1♀, 06.Feb.1975. Col de Blao, Rout QL20, Lam Dong Province, C.Vietnam. R.Metaye leg. (MNHN)

Records taken from Literature

Euthalia eriphylae alboapicala ; Miyazaki, Saito & Saito,2006b : 32, figs.N-90,♂,♀(left). (Lam Dong: Dai Duc Me)
Euthalia alboapicala ; Miyazaki et al.,2010 : 19, 24. (Lam Dong: Dai Duc Me; Madagui)
Euthalia alboapicala ; Monastyrskii & Devyatkin,2015 : 40, pl.10, figs.39a(HT,♀),39b(HT,♀Un). (C: Lam Dong / S: Dong Nai)
Euthalia alboapicala ; Monastyrskii,2019 : 4(2):118-119, pl.64, figs.2c♀,2d♀(Un). (C: Lam Dong / S: Cat Tien) (in part)
Euthalia eriphylae lioneli ; Monastyrskii,2019 : 4(2): pl.64, figs.1a♂,1b♂(Un). (S: Cat Tien) (in part)

Specimens Examined

Lam Dong : 1♂ 1♀.
JanFebMarAprMayJun JulAugSepOctNovDec


Chanthaburi : 1983.03.28. 1♂, Y.Inayoshi (KS).
JanFebMarAprMayJun JulAugSepOctNovDec


The butterfly is rare in montane forest at low elevations.
This taxon was described as a subspecies of eriphylae, then Miyazaki et al,2010 regarded it as a distinct species. However, I consider it should be a subspecies of Euthalia merta based on morphology. The male does not differ from merta in both pattern and genitalia. The female looks slightly different, but its basic characteristics are the same as those of merta. In Monastyrskii,2019, males of alboapicala and Euthalia eriphylae are misidentified, including their genitalia.
A single male was found on 28.Mar.1983 in Chanthaburi province, S.E. Thailand. It is likely to be ssp.alboapicala, or it could be a peninsular taxon. It is not certain at present. I am holding the subspecies until a female is found.


Monastyrskii, A.L.,2005 : New Taxa and new records of butterflies from Vietnam (3) (Lepidoptera, Rholalocera)
Atalanta (juli2005) 36(1/2):141-160,

2010.04.15 - 2021.08.31.

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