Fig. 1

Principal components analysis (PCA) using four-fold degenerate sites with reported samples from all six described members of the Culex pipiens complex (a) and with a four-taxon set that excluded the reported Australian endemic taxa, australicus and globocoxitus (b). These PCAs were implemented with PLINK and plotted in R. Shown are the first two PCs. Colors corresponding to the different reported taxa are consistent between the two PCAs