Table 3.

Divergence time estimates from alternative COI molecular clock rates.

Model	Papadopoulou partitioned COI rate	Papadopoulou unpartitioned COI rate	Derkarabetian COI rate
tMRCA Sitalcina sura group	18.25 (12.88–25.26)	19.36 (13.58–26.47)	29.43 (19.56–40.87)
tMRCA coastal clade	10.12 (6.88–14.03)	10.98 (7.56–14.85)	16.25 (10.57–23.07)
tMRCA desert clade	7.09 (4.85–10.01)	7.49 (5.09–10.37)	11.39 (7.64–16.04)
tMRCA Sitalcina borregoensis, Sitalcina oasiensis	4.86 (2–7.95)	5.32 (2.09–8.57)	7.87 (3–13.22)