Expression of a blue patch in A-females

Data file used in BayesTraits analysis of the evolution of blue abdominal patch in A-females of the damselfly genus Ischnura. The first column gives species names and the second column shows the character states for the expression of the blue patch. "0" indicates A-females are absent in a species. "1" corresponds to continuous expression of the blue patch throughout development. "2" corresponds immature-only expression of the blue patch and "3" represents cases where A-females exist but do not express a blue patch at any point in development.