This male was on a tall smartweed plant in a large patch of goldenrod. The wings are blurred because the male is actively singing. With the forewings raised, the metanotal gland, located dorso-anteriorly on the abdomen, is exposed. The female feeds on the metanotal gland after mounting the male while receiving the spermatophore A sperm-containing sac that the male passes to the female during copulation. . The seventh image in this series of images shows a mounted female feeding on the male's metanotal gland.