♂, Chiang Mai, Thailand.		♀, Satun, Thailand.
♂, Chiang Mai, Thailand.		♂, Yala, Thailand.
♂, Trat, Thailand.		♂ genitalia, Chiang Mai, Thailand.

ON : Isoteinon microstictum Wood-Mason & Nicéville, 1887 OD : J. asiat. Soc. Bengal, Part II. 55(4): 385-386, pl.17, figs.3, 3a. TL : " Silcuri" [Silcuri, Cachar, Assam]. (NZC) Distribution : Assam, Myanmar, Thailand, Vietnam, Langkawi, W.Malaysia, Singapore, Borneo, Sumatra.

Sepa biseriata Elwes & Edwards, 1897 : Trans. zool. Soc. Lond. 14(4): 213-214. TL. 'Philippines (Central Luzon)'
Arnetta binghami Swhinhoe, 1907 : Ann. Mag. nat. Hist. (7)20: 433. TL. "Tavoy Valley, Burmah" [Tanintharyi Region, Myanmar]. (NHML)

microstictum  ; 1♂ Type, 25.May.1881. Silcuri. (NZC) ; 1♀ Type, 28.May.1881. Silcuri. (NZC) ; Sheela et al.,2019 : 31, figs.♂,♂(Un), 32, figs.♀,♀(Un).

[ THAILAND ]
Hyarotis microstictum microstictum ; Evans,1949 : 304. (P)
Hyarotis microsticta microsticta ; Pinratana,1985 : 73, pl.25, fig.153,♂. (Chanthaburi; Nakhon Ratchasima)
Hyarotis microsticta microsticta ; Ek-Amnuay,[2007] : 794, pl.365, figs.H179,♂,♂(Un). (Chanthaburi)
Hyarotis microsticta microsticta ; Les Day,2011-2022 : Samui Butterflies, fig.[♂](Un). (Koh Samui) (accessed: 2022.02.11)
Hyarotis microsticta microsticta ; Kimura et al.,2011 : 74, figs.♂,♂(Un). (Nakohn Nayok; Kao Soi Dao; Kratching WF; Kao Chamaoh; Than To WF.)
Hyarotis microsticta microsticta ; Ek-Amnuay,2012 : 852, pl.393, figs.H176,♂,♂(Un). (Chanthaburi)
Hyarotis microstictum microstictum ; S.Sophonviwatkul, C.Sunthornwiphat & T.Laola,2019- : Butterflies of Thailand, figs. (Chiang Mai; Sa Kaeo; Nakhon Nayok) (accessed: 2024.06.18)

[ VIETNAM ]
Hyarotis microstictum microstictum ; Inoué & Kawazoé,1967 ; 8, fig.120,♀(Un). (Ben Nom)
Hyarotis microstictum microstictum ; Devyatkin & Monastyrskii,1999 : 171. (Vu Quang)
Hyarotis microstictum ; Monastyrskii et al.,2006 : 45. (Thua Thien Hue: Phong Dien)
Hyarotis microsticta microsticta ; Miyazaki et al.,2010 : 29, fig.H-147,♂. (Lam Dong: Dambri)
Hyarotis microstictum microstictum ; Monastyrskii & Devyatkin,2015 : 80. (C / S)

[ THAILAND ]
Chiang Mai : 5♂.

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Sa Kaeo : 1♂ (photo by S.Sophonviwatkul).

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Nakhon Nayok : 1♂ (photo by S.Sophonviwatkul).

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Trat : 5♂ (incl. photo & photo by E.Ikari).

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Satun (Koh Tarutao) : 1♀.

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Yala : 1♂ 1♀.

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

The butterfly is locally not rare in montane forests at low to moderate elevations (Alt. 10 - 550m). Males are territorial on shrubs.

Wood-Mason, J. & Nicéville, L. de,1887 : List of the lepidopterous insects collected in Cachar by Mr.J.Wood-Mason. Part II. Rhopalocera.
J. asiat. Soc. Bengal, Part II. 55(4): 343-393, 4 pls.

Elwes, H.J. & Edwards, J.,1897 : A Revision of the Oriental Hesperiidae.
Trans. zool. Soc. Lond. 14(4): 101-324, pls.18-27.

Swinhoe, C.,1907 : New species of African and Indo-Malayan Hesperiidae.
Ann. Mag. nat. Hist. (7)20: 430-436.

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.

♂ (territorial behavior), Trat, Thailand.	♂, Trat, Thailand.

1999.09.11 - 2025.01.31.