ON : Horaga amethystus purpurescens Corbet, 1941 OD : Proc. R. ent. Soc. Lond. (B)10(3):47-48. TL : Port Dickson, Negri Sembilan, "Malay Peninsula" [W.Malaysia]. (Selangor Museum) Distribution : S.Burma, Thailand, Laos, Vietnam, W.Malaysia.

Holotype, ♂, 9.Jan.1938. Port Dickson, Negri Sembilan, Malay Peninsula. (Selangor Museum)
Allotype, ♀, 28.Sep.1932. Bukit Kutu, 3300ft., Selangor, Malay Peninsula. H.M.Pendlebury (Selangor Museum)

[ THAILAND ]
Horaga amethysta purpurescens ; Cowan,1966 : 131. (Ranong)
Horaga amethysta purpurescens ; Pinratana,1981 : 125. not fig. (Ranong)
'Horaga amethysta purpurescens ; Ek-Amnuay,2012 : 718, pl.328, figs.360,♀(Malaysia),♀(Malaysia,Un).'
Horaga amethysta purpurescens ; Kimura et al.,2014 : 102. (by literature)

[ LAOS ]
Horaga amethysta purpurescens ; Nakamura et al.,2009 : 24-25, figs.5,♂,♂(Un). (Attapeu)
Horaga amethysta purpurescens ; Nakamura & Wakahara,2012 : 55, pl.21, figs.Ly-216,♂,♂(Un). (Attapeu)

[ VIETNAM ]
Horaga amethystus purpurescens ; Saito & Inayoshi,2018 : 35-36, figs.80,♂,♂(Un),81,♀,♀(Un). (Lam Dong)

The species is rare throughout the distribution area. Hitherto, only two specimens are known from Thailand (Cowan,1966: Ranong. (Doherty,NHML)).

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, 6 figs.

Cowan, C.F.,1966 : Indo-oriental Horagini (Lepidoptera : Lycaenidae).
Bull. Brit. Mus. nat. Hist. (Ent.) 18(4):103-141, 3 pls.

1999.07.18 - 2022.07.31.