Additional file 1: Table S1. Sample information. Table S2. Primer information. Table S3. Summary of nuclear genes. Table S4. Prior distributions of demographic parameters for all demographic models. Table S5. Command line for each model in the running msABC. Table S6. Records of original occurrencefor the two species. Table S7. Occurrence points used to construct theecological niche models. Table S8. Correlation coefficient of each environmental layer. Table S9. Morphological characteristics of the specimens.