Pirdana hyela rudolphii  Elwes & Nicéville, [1887]

Pirdana hyela rudolphii ♂ Up. Pirdana hyela rudolphii ♂ Un. Pirdana hyela rudolphii ♀ Up. Pirdana hyela rudolphii ♀ Un.
♂, Ranong, Thailand. ♀, Ranong, Thailand.
Pirdana hyela rudolphii ♂ Up. Pirdana hyela rudolphii ♂ Un. Pirdana hyela rudolphii ♀ Up. Pirdana hyela rudolphii ♀ Un.
♂, Ranong, Thailand. ♀, Trang, Thailand.
Pirdana hyela rudolphii ♂ Up. Pirdana hyela rudolphii ♂ Un. Pirdana hyela rudolphii ♀ Up. Pirdana hyela rudolphii ♀ Un.
♂, Trat, Thailand. ♀, Yala, Thailand.
Pirdana hyela rudolphii ♂ Up. Pirdana hyela rudolphii ♂ Un. Pirdana hyela rudolphii ♂ Up. Pirdana hyela rudolphii ♂ Un.
♂, Chiang Mai, Thailand. ♂, Phrae, Thailand.
Pirdana hyela rudolphii ♂ genitalia Pirdana hyela rudolphii ♂ genitalia
♂ genitalia, Phrae, Thailand.

ON : Pirdana rudolphii Elwes & Nicéville, [1887]
OD : J. asiat. Soc. Bengal, Pt.2. 55(5):438-439, pl.20, fig.6,♂.
TL : Tavoy. (♂)
Distribution : Myanmar (Karens to Mergui), Thailand (except Nan),
Cambodia, C. to S.Vietnam, W.Malaysia. {Singapore}.
● ssp.major
ssp.rudolphii
Pirdana hyela rudolphii map

Type Material Information

Type 1♂, Tavoy, Burma. (NZC) Sheela et al.,2019 : 49, figs.♂,♂(Un).


Records taken from Literature

[ THAILAND ]
Pirdana hyela rudolphii ; Godfrey,1916 : 145. (Chonburi: Hup Bon)
Pirdana hyela ; Godfrey,1930 : 378. (Chiang Mai; Prae: Me Song forest; Chonburi: Sriracha)
Pirdana hyela rudolphii ; Evans,1949 : 338. (Siam)
Pirdana hyela rudolphii ; Pinratana,1985 : 94, pl.33, figs.206,♂,♀,♂(Un). (Chiang Mai; Chaiyaphum; Nakhon Ratchasima; Nakhon Nayok; Chanthaburi; Ranong; Trang)
Pirdana hyela major ; Chiba & Tukiyama,1993 : 22, pl.1, figs.1a♂,1b♂(Un),2a♂,2b♂(Un). (Chiang Mai; Ranong)
Pirdana hyela rudolphii ; Ek-Amnuay,[2007] : 820, pl.377, figs.H241,♂[♀],♂[♀](Un),♀(Un). (Chiang Mai)
Pirdana hyela rudolphii ; Les Day,2011-2022 : Samui Butterflies, fig.[♂](Un). (Koh Phangan) (accessed: 2022.02.23)
Pirdana hyela rudolphii ; Kimura et al.,2011 : 90, figs.♂,♂(Un),♀,♀(Un). (Khun Lao Villege; Wan Nam Khiewo; Kao Soi Dao; Kratching WF; Kam Puan; Khlong Naka; Ka Chong; Than To WF.)
Pirdana hyela rudolphii ; Ek-Amnuay,2012 : 880, pl.407, figs.H238,♂[♀],♂[♀](Un),♀(Un). (Chiang Mai)
Pirdana hyela rudolphii ; S.Sophonviwatkul, C.Sunthornwiphat & T.Laola,2015- : Butterflies of Thailand, figs., Early Stages. (Kanchanaburi; Sa Kaeo; Saraburi; Chanthaburi; Trat; Yala) (accessed: 2023.09.02)
Pirdana hyela rudolphii ; Küppers & Janikorn,2017 : 119, fig.Abb.H-224. (Phang Nga)

[ CAMBODIA ]
Pirdana hyela rudolphii ; Kosterin,2019 : 102, fig.76,♂(Un). (Kampot)
Pirdana hyela rudolphii ; Kosterin,2020 : 333. (Siem Reap)
Pirdana hyela rudolphii ; Chartier & Kosterin,2022 : 126. (Koh Kong; Kampot; Siem Reap)

[ VIETNAM ]
Pirdana hyela rudolphii ; Inoué & Kawazoé,1970 ; 10-11, figs.151,♀,152,♀(Un),textfig.48(♂genitalia). (Trang Bom; Banmethuot)
Pirdana hyela rudolphii ; Miyazaki, Saito & Saito,2007b : 14, figs.H-95,♂,♀. (Lam Dong: Dambri; Dai Duc Me)
Pirdana hyela rudolphii ; Monastyrskii & Devyatkin,2015 : 82. ('N' / C / S)


Specimens Examined

[ THAILAND ]
Chiang Mai : 1♂.
JanFebMarAprMayJun JulAugSepOctNovDec

Phrae : 2♂.
JanFebMarAprMayJun JulAugSepOctNovDec

Sa Kaeo : 2♂ 1♀ (incl. photo).
JanFebMarAprMayJun JulAugSepOctNovDec

Chanthaburi : 3♂.
JanFebMarAprMayJun JulAugSepOctNovDec

Trat (Koh Chang dist.) : 2♂.
JanFebMarAprMayJun JulAugSepOctNovDec

Phetchaburi : 2♂ (photo by K.Yano & M.Hayashi).
JanFebMarAprMayJun JulAugSepOctNovDec

Ranong : 8♂ 4♀.
JanFebMarAprMayJun JulAugSepOctNovDec

Phang Nga : 1♂.
JanFebMarAprMayJun JulAugSepOctNovDec

Nakhon Si Thammarat : 1♂.
JanFebMarAprMayJun JulAugSepOctNovDec

Trang : 1♀.
JanFebMarAprMayJun JulAugSepOctNovDec

Satun : 1♂.
JanFebMarAprMayJun JulAugSepOctNovDec

Yala : 3♂ 1♀ (incl. photo by S.Atdhabhan).
JanFebMarAprMayJun JulAugSepOctNovDec

Narathiwat : 1♂.
JanFebMarAprMayJun JulAugSepOctNovDec


[ VIETNAMD ]
Lam Dong : 1♂ 1♀.
JanFebMarAprMayJun JulAugSepOctNovDec


Notes

The butterfly is locally not rare in montane forests at low to moderate elevations (Alt. 30 - 900m).
Chiba & Tukiyama (1993:22) treated the population from Chiang Mi, N.Thailand as ssp.major. They also considered the specimens from Ranong, peninsular Thailand to be ssp.major and the transitional form to ssp.rudolphii. However, the specimens in Thailand are very variable, but size and male genitalia are the same as rudolphii. I therefore treat all populations from Thailand except Nan as ssp.rudolphii.
On the other hand, populations from Nan, Laos and north to central Vietnam are much larger than ssp.rudolphii and have a slightly different valva of the male genitalia. I tentatively treat them as ssp.major. However, in central Vietnam, both subspecies appear to occur together and it is possible that they are separate species. Further taxonomic and distributional studies are needed.


Literature

Elwes, H.J. & Nicéville, L.de,[1887] :
List of the lepidopterous insects collected in Tavoy and in Siam during 1884 and 1885 by the Indian Museum collector, under C.E.Pitman, Esp.
J. asiat. Soc. Bengal, Pt II 55(5):413-442.

Chiba, H. & Tsukiyama, H.,1993 : A review of the Genus Pirdana Distant (Lepidoptera: Hesperiidae)
Butterflies 6:19-25.


Pirdana hyela rudolphii ♂ Pirdana hyela rudolphii ♂
♂, Phetchaburi, Thailand. (photo by K.Yano) ♂, Phetchaburi, Thailand. (photo by M.Hayashi)
Pirdana hyela rudolphii ♂ Pirdana hyela rudolphii ♀
♂, Sa Kaeo, Thailand. ♀, Sa Kaeo, Thailand.

2018.03.31 - 2024.06.30.

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