Figure 4. Illustration of the spread of different species of Brazilian and Mexican triatomine bugs in a morphological space defined by the first two principal components (Brazil: component 1 = 44.0% of overall variation, component 2 = 21.8% of overall variation; Mexico: component 2 = 18.7% of overall variation, component 3 = 12.5% of overall variation—note that species separated best in this space of component 3 vs component 2), summarizing all of the measurements used in this study.

(A) shows the distribution of all of the genera except for Triatoma, and (B) shows the distribution of Triatoma species only, as a zoom of the central part of (C).