Figure 1. Bivariate plot of Pseudacteon species latitudinal maxima and latitudinal ranges. Latitudinal maxima are the maximum absolute latitudinal values for each species. These values were then reset to their original North-South polarity. Values between the lines extending from −23.5 and 23.5 are for species known only from the tropics, while those above the lines marked TZ (Temperate Zone) represent those species whose ranges extends into the tropics. Below the TZ lines, the species are exclusively temperate. Ranges for species in the northern and southern hemisphere extend south and north from their maxima, respectively.