This species may be divided into three groups:
D'Arnaud's (T.d. darnaudii/boehmi)
Usambiro (T.d. usambiro)
Black-capped (T.d. emini)
This is the Usambiro type which is endemic to the Serengeti/Masai region of northern Tanzania. The Usambiro Barbet, formerly considered a separate species was lumped with D'Arnaud's Barbet in the 5th edition of Clements. However some authorities, most notably Birdlife International still consider Usambiro Barbet to be a separate species.
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