Delias berinda yedanula  Fruhstorfer, 1910

Delias berinda yedanula ♂ Up Delias berinda yedanula ♂ Un Delias berinda yedanula ♀ Up Delias berinda yedanula ♀ Un
♂, Chiang Mai, Thailand. ♀, Chiang Mai, Thailand.
Delias berinda yedanula ♂ Up Delias berinda yedanula ♂ Un Delias berinda yedanula ♀ Up Delias berinda yedanula ♀ Un
♂, Nan, Thailand. ♀, Nan, Thailand.
Delias berinda yedanula ♂ Up Delias berinda yedanula ♂ Un Delias berinda yedanula ♀ Up Delias berinda yedanula ♀ Un
♂, Chiang Mai, Thailand. ♀, Chiang Mai, Thailand.
Delias berinda yedanula ♂ Up Delias berinda yedanula ♂ Un Delias berinda yedanula ♀ Up Delias berinda yedanula ♀ Un
♂, Lai Chau, Vietnam. (photo by K.Saito) ♀, Lao Cai, Vietnam. (photo by K.Saito)
Delias berinda yedanula ♂ Up Delias berinda yedanula ♂ Un Delias berinda yedanula ♀ Up Delias berinda yedanula ♀ Un
♂, Nan, Thailand. ♀, Chiang Mai, Thailand.
Delias berinda yedanula ♂ Up Delias berinda yedanula ♂ Up Delias berinda yedanula ♂ Up Delias berinda yedanula ♂ Up
♂, Nan, Thailand. ♂, Nan, Thailand. ♂, Nan, Thailand. ♂, Mae Hong Son, Thailand.

ON : Delias belladonna yedanula Fruhstorfer, 1910
OD : in Seitz, Grossschmett. Erde 9:131.
TL : Omei Shan, China. (NHML)
Distribution : Myanmar, N.Thailand, Laos, N.Vietnam,
S.China.
Delias berinda yedanula Map

Synonym

Delias sanaca atsukoae Nakano, 1993 : An illust. list. Delias World :11, pl.93, figs.3(PT,♂), 4(HT,♂Un). TL. Nan, Thailand. (♂, in coll. S.Nakano)


Type Materials Information

yedanula ; ♀, Type (red), Omei Shan, China. (NHML, examined)
atsukoae ; Holotype ♂, Nan, Thailand. (in coll. S.Nakano, examined) ; Paratype 1♀, Nan, Thailand. (in coll. S.Nakano, examined)


Records taken from Literature

[ THAILAND ]
Delias sanaca perspicua ; Pinratana,1983 : 6,32, pl.2, figs.3,♂,♀. (Chiang Mai)
Delias sanaca atsukoae ; Yagishita et al.,1993 : pl.93, figs.3,♂(PT),4,♂(HT,Un). (N: Nan)
Delias berinda yedanula ; Yagishita et al.,1993 : pl.95, figs.5,♂,6,♀. (N: Fang; Chiang Rai)
Delias berinda yedanula ; Inayoshi & Nishimura,1997 : 21, figs.55,♂,56,♂,57,♀,58,♂,59,♂. (Doi Pha Hom Pok; Doi Pomeun; Doi Chiang Dao; Doi Inthanon; Omkoi; Wiang Pa Pao; Mae Sariang; Doi Phu Kha)
Delias sanaca perspicua ; Ek-Amnuay,[2007] : 126, pl.35, figs.Pi3,♂,♂(Un),♀,♀(Un). (Doi Pha Hom Pok; Doi Inthanon; Wiang Pa Pao; Doi Phu Kha)
Delias berinda yedanula ; Ek-Amnuay,[2007] : pl.35, figs.Pi4,♂,♂(Un). (Doi Phu Kha) (in part)
Delias berinda yedanula ; Kimura et al.,2011 : 166, figs.♂,♂(Un),♂,♂(Un),♀,♀(Un). (Doi Pha Hom Pok; Doi Inthanon; Maethro)
Delias sanaca perspicua ; Ek-Amnuay,2012 : 126, pl.35, figs.Pi3,♂,♂(Un),♀,♀(Un). (Doi Pha Hom Pok; Doi Inthanon; Wiang Pa Pao; Doi Phu Kha)
Delias berinda yedanula ; Ek-Amnuay,2012 : pl.35, figs.Pi4,♂,♂(Un). (Doi Phu Kha) (in part)
Delias berinda yadanula ; S.Sophonviwatkul, C.Sunthornwiphat & T.Laola,2015- : Butterflies of Thailand, figs. (Chiang Mai) (accessed: 2022.06.19)

[ LAOS ]
Delias sanaca perspicua ; Motono & Negishi,1989 : 48, pl.15, figs.3,♂,4,♂(Un). (Phatong)
Delias berinda yedanula ; Inayoshi & Nishimura,1997 : 21. (Xaignabouri; Phathon)
Delias berinda yedanula ; Osada, Uémura & Uehara,1999 : 202, pl.28, figs.♂,♂(Un),♀. (Phong Saly; Xam Neua)
Delias berinda yedanula ; Nakamura & Wakahara,2012 : 42.


Specimens Examined

[ THAILAND ]
Chiang Rai : 4♂.
JanFebMarAprMayJun JulAugSepOctNovDec

Chiang Mai : 12♂ 3♀ (incl.photo).
JanFebMarAprMayJun JulAugSepOctNovDec

Nan : 12♂ 1♀.
JanFebMarAprMayJun JulAugSepOctNovDec


[ LAOS ]
Xaignabouri : 5♂.
JanFebMarAprMayJun JulAugSepOctNovDec


[ VIETNAM ]
Lao Cai : 1♀.
JanFebMarAprMayJun JulAugSepOctNovDec

Lai Chau : 1♂.
JanFebMarAprMayJun JulAugSepOctNovDec


Notes

New to Vietnam.
The butterfly is locally very common in montane forest at moderate to high elevations (Alt. 1300 - 2200m). Males are territorial at hilltops and fly in circles for long hours in their territorial space. They very often chase Teinopalpus imperialis and engage in territorial fights. On the other hand, males frequently come to the banks of streams and puddles to suck water together with belladonna, sanaca and patrua. Delias sanaca and Delias berinda are quite similar and need to check genitalia for identification.
I examined the genitalia of the Holotype and Paratype of Delias sanaca atsukoae, and confirmed they are definitely Delias berinda, not sanaca. Thus, atsukoeae is treated as belonging to berinda and, furthermore, was a synonym of yedanula for the following reasons. The population in Nan is very variable in size and markings. Most of them are large in size and similar markings as ordinary yedanula, like specimens shown at the bottom row; but some are small in size and have very similar markings to sanaca, as a male specimen shown on the 2nd row. This variation is not seen in Chiang Mai. Curiously, no sanaca has ever been found in Nan province. The classification of this species needs further review.


Literature

Fruhstorfer, H.,1910 : 2. Familie: Pieridae in Seitz, Gross-Schmett. Erde 9
121-144. (14.Jan.1910)

Yagishita, A., Nakano, S. & Morita, S.,1993 : An Illustrated List of the Genus Delias Hübner of the World.
409 pls, 384 pp, Khepera Publishers, Tokyo.

Inayoshi, Y. & Nishimura, M.,1997 : A reviw of the belladonna group of the genus Delias (Lepidoptera, Pieridae).
Butterflies 16:18-33. (in Japanese)


Delias berinda yedanula ♂ Delias berinda yedanula ♀
♂, Chiang Mai, Thailand. ♀, Chiang Mai, Thailand.
Delias berinda yedanula ♂ Delias berinda yedanula ♀
♂, Chiang Mai, Thailand. ♀, Chiang Mai, Thailand.
Delias berinda yedanula ♂ Delias berinda yedanula ♂
♂ with belladonna and Prioneris thestylis, Chiang Mai, Thailand. ♂ with sanaca, Chiang Mai, Thailand.

1996.10.31 - 2022.06.30

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