The diurnal knob-scaled lizard feeds primarily upon insects, especially on Orthoptera (grasshoppers, crickets and locusts) and Lepidoptera larvae (caterpillars of moths and butterflies), but it also occasionally feeds on small vertebrates such as lizards (3). An ambush predator, the knob-scaled lizard waits hidden in a rocky crevice until launching a surprise attack when prey comes within range (6). This lizard is a solitary species which will aggressively defend its crevice from other lizards, including other individuals of the same species (3).
The knob-scaled lizard gives birth to live young in late spring or early summer (3) (8), after a nine-month gestation period (9). On average, each litter contains three young (10), but litters of two to seven young have been reported (3) (10). Male knob-scaled lizards reach maturity at 28 months, while females reach maturity a little later at 32 months (11). The growth rate for males and females is highly dependent on the seasonal availability of food, with growth rate being greatest during the wet season (11).