Figure 1
From: Morphological differentiation despite gene flow in an endangered grasshopper
Sample Map. Sample locations in South Island, New Zealand, of the Sigaus australis complex grasshoppers used in this study. The two main species Sigaus australis (green) and Sigaus childi (pink) are morphologically very different; S. childi tends to be smaller and more camouflaged to its local habitat than S. australis. The ‘Central Group’ and ‘Area of sympatry’ defined here are used to analyse subsets of the specimens. Hatched circles represent locations with both species present.