at rest,
half an hour,
The male damselfly is near the dark female damselfly,
flapping its bright wings and flying,
tumbling and flying up and down,
Fly upside down and fly low over the water,
Wrap her tail around the head of the damselfly,
At this time, the mating device at the end of the female damselfly' s abdomen bends,
close to the copulatory device on the breast of the male damselfly,
Form a heart-like pattern...