Overview
Across the sun-warmed kopjes of the Serengeti and Ngorongoro, a flash of red and blue may reveal one of Tanzania’s most colourful reptiles. The Mwanza flat-headed agama is often nicknamed the “Spider-Man agama” because the striking colours of dominant males resemble the comic-book character’s costume.
Adult males can display fiery red, orange or violet across the head, neck and shoulders, contrasting dramatically with a deep blue body and tail. Females, juveniles and non-dominant males are far less conspicuous, with mottled brown or grey colouring that blends closely with the surrounding rocks.
These agile, day-active lizards spend much of their time basking, watching for insects and retreating into narrow crevices when threatened. They are strongly associated with kopjes, rocky hillsides and other exposed stone formations across northern Tanzania and neighbouring parts of East Africa.
Behaviour & How to Identify
Look for a medium-sized, flat-bodied lizard with a broad head, long limbs and a tapering tail. A dominant male’s red-and-blue colouring is unmistakable, but females and younger animals can be difficult to distinguish from other brown agamas without a close view.
Males occupy prominent basking rocks and actively defend the surrounding area. Head-bobbing, push-ups, body flattening and sideways head movements communicate strength and ownership to rivals while also attracting females.
The lizards are most active during warm daylight hours. They bask on exposed rocks to raise their body temperature, then move quickly across the surface in pursuit of ants, termites and other small invertebrates. At the first sign of danger, they disappear into cracks and spaces between boulders.
Interesting facts
Only dominant males display the most dramatic colours. Females, juveniles and subordinate males are usually much duller, helping them remain inconspicuous against the rocks.
Their displays combine head-bobs and push-ups. These movements help males advertise ownership of a territory and communicate with potential mates or rivals.
The nickname “Spider-Man agama” comes from its colours. The combination of a red head and blue body has made it especially popular with photographers and wildlife enthusiasts.