Dithalma mecysma Swinhoe, 1894 Trans. ent. Soc. Lond., 1894:
Scopula mecysma mesites Prout,
1935, Novit. zool., 39: 227.
is atypical of the genus with fine, straight, almost black fasciae traversing a
dark grey ground.
Himalaya, Taiwan, Thailand; Borneo, Java, Bali, Sulawesi, New Guinea (ssp. mesites).
species is rare, with only four specimens taken in recent surveys, two from
lowland forest (Ulu Temburong in Brunei and at the Danum Valley Field Centre and
Poring Hot Springs in Sabah) and one from 1500m on the Mesilau Plateau of G.
Kinabalu when still under forest cover.
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