It closely resembles D. spadiceus; its pale shoulder area may be more extensive. The few known localities suggest an association with mature lowland forest.
It is similar in size and coloration to D. spadiceus. Its pale yellowish shoulder area may be more extensive, though the authors say this is difficult to judge.
Its few known localities suggest an association with mature lowland forest. The paper says that little else is known about its natural history.
The skull and mandible are longer than in Dyacopterus spadiceus, with an elongated snout.
Two Sumatran specimens have prominent protuberances along the edges of the lips.
An extinction-risk assessment has not been added yet.