- Southern Tree Agama, Black-necked Agama or Blue-throated Agama [Acanthocercus atricollis]
- There are possibly up to 6 races, but all poorly defined
- 135 mm
- 167 mm
A very large agama with a broad head. Breeding males have a dull blue to bluish back, with bright blue (anteriorly) to straw-yellow (posteriorly) spines and a bright cobalt-blue head.
Ethiopia, through Eastern Africa to the North-Eastern parts of the subcontinent, reaching the southern limits in coastal Kwa-Zulu Natal, Eastern Botswana (Lobatsi) and Ovamboland.
The female lays 5 - 14 oval, soft-shelled eggs in a hole dug in moist soil. These hatch after 90 days.
Caterpillars, grasshoppers and beetles.