A penalised likelihood chronogram of our Bayesian consensus tree. The dark tan coloured branche indicates an ancestral affiliation with those of host section Phyllodinae; tan coloured branches indicate Juliflorae ancestral host affiliation; and green coloured branches indicate Plurinerves ancestral host affiliation. Red node circles show constrained calibration points between 10–15 mya and 2–5 mya. The coloured boxes indicate the K. rugosus and K. waterhousei species complexes. The time scale is in millions of years ago (mya).