love and marriage: what does the male praying mantis lose to the female after mating?

Questions

Sir John Hawkins, wrote first history of music in English, born.?

Francisco Jose de Goya, artist, born.?

Dr C. Long first used ether as an anesthetic during a minor operation.?

Vincent Van Gogh, artist who always lent an ear, born.?

Hyman L. Lipman of Philadelphia patented a pencil with an attached eraser.?