The two subspecies D. m. hypochrysis and D. m. hypoxantha are both known from the Baliem Valley in West Papua.
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"Ndani" is the name given to the Baliem Valley people by the Moni people, and, while they don't call themselves Dani, they have been known as such since the 1926 Smithsonian Institution-Dutch Colonial Government expedition to New Guinea under Matthew Stirling who visited the Moni.
The Lani are an indigenous people in Western New Guinea, usually labelled 'Western Dani' by foreign missionaries, or grouped—inaccurately—with the Dani people who inhabit the Baliem Valley to the east.