ON : Isoteinon masuriensis Moore, 1878 OD : Proc. zool. Soc. Lond. 1878(3): 693-694, pl.45, fig.3,♂. TL : "Masuri, N.W.Hiamalaya" [Mussoorie, NW.India]. (NHML) Distribution : N.W.Himalayas, Sikkim, Assam, Tibet, Chongqing, Laos.

[ LAOS ]
Pedesta masuriensis ssp. ; Osada, Uémura & Uehara,1999 : 223, pl.137, fig.♂. (Xiang Khouang)
Pedesta masuriensis ; Nakamura & Wakahara,2012 : 58.

[ VIETNAM ]
Pedestes masuriensis ; Metaye,1957 : 78.
Pedestes masuriensis ; Devyatkin & Monastyrskii,1999 : 164. (by Metaye,1957)

As noted by Huang (2011), it is possible that masuriensis and its subspecies tali are separate species based on their distribution. Further taxonomic study is needed.

Moore, F.,1878 : Descriptions of new Asiatic Hesperidae.
Proc. zool. Soc. Lond. 1878(3): 686-695, pl.45.

Evans, W.H.,1949 : A catalogue of the Hesperiidae from Europe, Asia and Australia in the British Museum (Natural History).
i-xix + 1-502, pls.1-35. London.

Huang, H.,2011 : Notes on the genus Thoressa Swinhoe, [1913] from China, with the description of a new species (Lepidoptera, Hesperiidae).
Atalanta 42(1-4): 193-200.

Huang, Z.F., Chiba, H., Jin, J., Kizhakke, A.G., Wang, M., Kunte, K. & Fan, X.L.,2019 :
A multilocus phylogenetic framework of the tribe Aeromachini (Lepidoptera: Hesperiidae: Hesperiinae), with implications for taxonomy and biogeography.
Syst. Entomol. 44: 163–178.

Cao, C., H.S., Xu, Y., Wu, H., Chen, T., Wang, M., Da,W. & Fan, X.,2019 :
New records and their associated DNA barcodes of the butterfly family Hesperiidae in Tibet, China.
Zootaxa 4674(4): 426–438.

1999.09.04 - 2023.07.31.