Diphthera mjobergi Prout,
1926, Sarawak Mus. J. 3: 231.
Trichosea mjobergi Prout;
Holloway, 1976: 32.
Diagnosis. The striking black and white pattern of the forewings is unmistakable.
Taxonomic notes. The species is related to T. nigricatena Prout (Ceram, Sulawesi),
sharing several features such as an exceptionally large corema on the male 8th
abdominal sternite, a distinct lateral expansion at the base of the uncus, a
more irregular, less sagittate black pattern to the forewing, with the reniform
solid black instead of white-centred. Other taxa examined were champa Moore
(Himalaya, China, Taiwan, Japan), androdes Prout (Sumatra, Peninsular
Malaysia), tamsi Prout (Sumatra) and leucotaenia Prout (Buru), a
list that includes all Malaysian and Indonesian taxa.
Geographical range. Borneo.
Habitat preference. The species is often frequent in upper montane forest
above 1600m and has been taken at 2300m. It has been taken on G. Kinabalu, G.
Mulu, G. Murud, Bukit Pagon and Bukit Retak.
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