Figure 4. Delaunay triangulation of localities for male Tasmaniosoma compitale (filled circles), Tasmaniosoma hickmanorum (open circles) and co-occurrences (stars). The set of localities used has been trimmed to the vicinity of the parapatric boundary, and Tasmaniosoma hickmanorum localities in the Arthur-Hellyer ‘island’ and Tasmaniosoma compitale localities at the Vale of Belvoir have been excluded. Scale bar = 25 km.