♂, 1991.06.19. Nan, Thailand.		♀, 1992.09.09. Nan, Thailand.
♂, 1992.03.13. Nan, Thailand.		♀, Bolikhamxai, Laos.
♂, 1992.09.13. Nan, Thailand.		♀, Phetchabun, Thailand.
♂ genitalia, Nan, Thailand.

ON : Celaenorrhinus vietnamicus Devyatkin,1998 OD : Neue Ent. Nachr. 41:289-292, figs.1♂,2♂(Un). TL : Ba Vi, Ha Tay Province, N.Vietnam. Distribution : Thailand, Laos, Vietnam.

Holotype ♂, 1993.VIII.19. Ba Vi, Ha Tay Province, North Vietnam. A.Baranov
Paratypes : 1♂, same locality as holotype, 1996.VI.9. A.Monastyrskii; 1♂, 1995.XII.3. Tam Dao, Vinh Phu; 1♀, 1995.V.13, Tam Dao, Vinh Phu;
3♂4♀, Ba Be National Park, Bac Can Prov. 1♂,1996.IV.9; 1♂, 1♀, 1996.XI.5; 1♀, 1997.IV.8; 1♀, 1997.VI.4; 1♀, 1997.VI.5; 1♂, 1996.XI.7;
1♂, 1994.XII. Pu Mat, Nghe An Prov.

[ THAILAND ]
Celaenorrhinus vietnamicus ; S.Sophonviwatkul, C.Sunthornwiphat & T.Laola,2015- : Butterflies of Thailand, fig. (Phetchabun)
Celaenorrhinus vietnamicus ; Saito & Inayoshi,2018 : 39, figs.120,♂,♂(Un). (Nan / Phetchabun)

[ LAOS ]
[ Celaenorrhinus aurivittatus aurivittatus ; Motono & Negishi,1989 : 79, pl.110, figs.B9-10. (Phatong / Luang Prabang / Vang Vieng) ]
Celaenorrhinus aurivittatus aurivittatus ; Osada, Uémura & Uehara,1999 ; 222, pl.134, figs.♂,♀. (Thabok / Phatong)
[ Celaenorrhinus aurivittatus aurivittatus ; Nimura & Wakahara,2005 : 48. (Namdua) ]
Celaenorrhinus aurivittatus aurivittatus ; Nakamura & Wakahara,2012 : 57.

[ VIETNAM ]
[ Celaenorrhinus aurivittata aurivittata ; Inoué & Kawazoé,1964 ; 47, figs.19,♀,20,♀(Un). (Banmethuot) ]
Celaenorrhinus vietnamicus ; Devyatkin & Monastyrskii,1999 ; 159. (N: Tam Dao ; Ba Vi ; Ba Be ; Cuc Phuong / C: Pu Mat)
Celaenorrhinus aurivittata aurivittata ; Ikeda et al.,2001b : 63, figs.2:1,♂,2,♂(Un),5:11(♂genitalia). (Cuc Phuong)
Celaenorrhinus vietnamicus ; Devyatkin & Monastyrskii,2003 ; 122. (S: Bi Doup - Nui Ba)
Celaenorrhinus vietnamicus ; Luong et al.,2004 : 13, 85, figs.♂,♂(Un). (Cuc Phuong)
Celaenorrhinus vietnamicus ; Miyazaki, Saito & Saito,2007b ; 6, fig.H-22,♂. (Lam Dong: Dai Duc Me)
Celaenorrhinus vietnamicus ; Monastyrskii & Devyatkin,2015 : 72. (N / C: to Lam Dong)

[ THAILAND ]
Nan : 7♂ 3♀ ; Pua dist. (incl.photo)
1♂, 1991.04.--. LC (YI) ; 1♂, 1991.06.19. LC (YI)

Jan

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Dec

Phetchabun : 4♂ 1♀ (incl.photo).

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

[ LAOS ]
Bolikhamxai : 1♀.

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Dec

The above specimen from Nan is the first record in Thailand. Both Celaenorrhinus vietnamicus and Celaenorrhinus aurivittata are found together in Nan.
The butterfly is not rare in montane forest at moderate elevations (Alt.500m - 1300m).

Devyatkin, A.L.,1998 : Hesperiidae of Vietnam 3.
A new species of Celaenorrhinus Hübner,1819 from Vietnam, with revisional notes on the C.aurivitttata (Moore,1879) group (Lepidoptera: Hesperiidae)
Neue Ent. Nachr. 44:289-294, col.pl.301.

♂, Phetchabun, Thailand.	♂, Nan, Thailand.
Bolikhamxai, Laos. (photo by K.Phongpiyamit)

2012.08.31 - 2020.10.31.