Genus Hexafrenum Matsumura, 1925: 400

TS: Hexafrenum maculifer Matsumura, 1925

The genus Hexafrenum was established by Shônen Matsumura in 1925 from the type species Hexafrenum maculifer Matsumura, 1925 . The genus is characterized by bipectinated antennas in male and filiform in females an elongated shape of the forewings, where the dorsal tooth is well developed; ground colour is chocolate-brown, often with a hint reddish colour; apex, discal spot, the basal streak toward the margin of forewings are pale yellowish brown (Schintlmeister 2007). Hexafrenum is globally represented by approximately about 23 species are known and ranges from Afghanistan, Pakistan, the Himalaya, China, the Far East, Taiwan, Indochina, Sundaland, Java, the Philippines and Sulawesi (Wu & Fang 2004; Schintlmeister & Pinratana 2007). In this study, a new species is described, Hexafrenum tangkhula Irungbam & Schintlmeister, sp. nov. from NE India.