About Matrona cyanoptera Hämäläinen & Yeh, 2000
Males of Matrona cyanoptera have a green thorax and abdomen with a metallic blue sheen, and their wings are also metallic blue. At the tip of their abdomen, males have a double-pronged clasper that they use to hold onto females during mating. Females have a metallic green thorax and a green or dull brown abdomen; their wings may be dark brown, and they have a white pseudopterostigma. Juvenile males may also have brown wings. Adult individuals of this species have a total body length between 62 and 67 millimeters. Matrona cyanoptera is most commonly found around shallow streams or lakes in low-altitude mountainous areas. Adults can usually be observed perching on leaf tips, or flying over open water.
