Table 3. Divergence time based on three arthropod mitochondrial divergence rates.

Trees are presented in supplemental material S3 Fig.

	2.5%/my	3.54%/my	5.25%/my
Group 1 (Florida/All other populations)	0.923	0.613	0.427
Group 2 (US, El Salvador, Mex/ Brazil, Argentina)	0.685	0.455	0.316