Ephemeri vita, or, The natural history and anatomy of the Ephemeron, a fly that lives but five hours written originally in Low-Dutch by Jo. Swammerdam ...
Swammerdam, Jan, 1637-1680., Tyson, Edward, 1650-1708.
Figure 3.

Representeth the double Egg-cluster of the Worm, made up of an infinite number of very small Eggs, which at the time when the Worm is changed into the Ephemeron, and flyeth on the Surface of the water, are by the Female shot out on the water, and are besprinkled by the Male Seed. So that these Insects are Generated without Copulation.