This is the
largest Bornean species, the forewing varying from orange-grey (males) to deep
purplish reddish grey (females). The postmedial distinct, with even bands, dark,
then pale, distally.
male genitalia have a strong, setose clavus and a heart-shaped juxta. There is
some resemblance in them to those of Himalayan taxa such as D. vulpina Moore.
is the only noctuid characteristic of the summit zone of G. Kinabalu (Holloway,
1970), being common above 3000m but also encountered as low as 2100m.
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