Refer to the Figure

Short Answer

Refer to the figure. The figure shows the phylogeny of seven species of beetles (A through G).The figure also shows whether the beetles have (marked with check) or do not have (marked with an x) one of three stripes.It also states the color of the beetle (R for red and G for green).
A synapomorphy shared by species C and D, but not by species A and B, is the presence of stripe _______.