57. Hexafrenum viola (Schintlmeister, 1997) (new record for India)

(Figs. 24, 52)

Hexafrenum viola Schintlmeister, 1997; Entomofauna, Suppl. 9: 153; pl. 30: 17, 18; Fig. 149. TL: N Vietnam, Mt. Fan-si-pan, W-Seite, Cha-pa, 22° 20′ N, 103° 40′ E.

Material examined. India: 2 ♂♂, Manipur, Ukhrul district, Shirui Hill (Site 2), 25.1171°N 94.4456°E, 2198 m, 12.VII.2016, genitalia slide no. JSI-GP 285; leg. JS Irungbam (in coll. NZC, ZSI, Registration no. 11524/H10) .

Diagnosis. Forewing length 21 mm in male. Externally the species is slightly different from other members of Hexafrenum . The forewing are deeply shaped; the discal spot pale brown marked. There is a prominent black spot in the basal area (Schintlmeister & Pinratana 2007). The male genitalia have slender phallus and a deeper bilobed uncus.

Distribution. India: Manipur (in the present study). Elsewhere. Vietnam, China (Yunnan), N Thailand (Schintlmeister & Pinratana 2007); Laos (Kobayashi 2020).