Data collection and phylogenetic screening of sequences. (A) Localities where the 84 tick specimens used in this study were collected. (B) Phylogeny of ticks resulting from Bayesian analysis of COI. Numbers on branches are posterior probabilities. ○, sequence amplified from our specimens; △, previously published sequences; □, unpublished sequences included in data set; ■, misplaced unpublished sequences excluded from data set.