Colias myrmidone, the Danube clouded yellow, is a butterfly in the family Pieridae. Distribution It is found from Western Asia, through Southern Russia, Ukraine, Romania, Hungary up to Austria and the Jura Mountains near Regensburg in Germany. Description The wingspan is 44–50 mm. The butterfly flies in May and again from July to August in two generations. Biology The larvae feed on species of the flowering plant in the genus Chamaecytisus including Chamaecytisus ratisbonensis, Chamaecytisus ruthenicus and Chamaecytisus supinus. References External links Taxonomy and photos Fauna Europaea myrmidone Butterflies described in 1780 Butterflies of Asia Butterflies of Europe Taxa named by Eugenius Johann Christoph Esper